rainbow

rainbow — 名詞

1. The multicoloured shape that can be seen crossing the sky on a day when the sun

1.名詞A1
釋義

彩虹

陽光照射雨滴形成在天空的彩色弧形

The multicoloured shape that can be seen crossing the sky on a day when the sun comes out while it is still raining.

例句

After the rain stopped, Selim saw a beautiful rainbow above the hills.

雨停之後,Selim 看到山丘上空出現了一道美麗的彩虹。

used for a sky phenomenon after rain

The little girl pointed at the rainbow and shouted with joy.

小女孩指著彩虹,開心地大叫。

同義詞
  • arc

    emphasises the curved shape; more technical

  • spectrum

    focuses on the colour range rather than the shape in the sky

文法句型

a/the rainbow

常見錯誤

The rainbow is a natural light show by rain.
A rainbow appears when sunlight passes through rain.
💡'rainbow' is a thing you see, not a light show created by rain itself.

2. The band of colours produced when white light is separated, for example by a gla

2.名詞B2
釋義

光譜

白光分解成多種顏色的現象

The band of colours produced when white light is separated, for example by a glass prism or by water drops in the air.

例句

In science class, Sirin used a prism to create a rainbow on the wall.

自然課上,Sirin 用三稜鏡在牆上製造出一道彩色光譜。

uncountable: the effect of light separation

A prism splits white light into a rainbow of separate colours.

三稜鏡能將白光分解成一道彩虹般的彩色光帶。

同義詞
  • spectrum

    the standard scientific term for this effect

  • prismatic colours

    more technical; refers specifically to colours from a prism

文法句型

a rainbow of colours

create/form a rainbow

用法筆記

This sense describes the scientific effect of light splitting into colours, distinct from sense 1 (the weather phenomenon) and sense 3 (a colourful arrangement of objects).

3. A wide and attractive group of many different colours arranged together in the s

3.名詞B1
釋義

繽紛色彩

多種顏色組成的豐富組合

A wide and attractive group of many different colours arranged together in the same place.

例句

The market sold fabrics in a rainbow of colours, from deep blue to bright red.

市場上賣的布料色彩繽紛,從深藍到亮紅都有。

pattern: a rainbow of colours

Léa arranged her coloured pencils in a rainbow order on the desk.

Léa 把她的彩色鉛筆按照彩虹色順序排在桌上。

同義詞
  • array

    more formal; an impressive range of colours

  • kaleidoscope

    suggests constantly changing colours; more poetic

文法句型

a rainbow of + plural noun

用法筆記

Common in the pattern 'a rainbow of + noun' to describe a colourful mix. Unlike sense 2 (light spectrum), this refers to physical objects that happen to be colourful.

4. A large number of different types, kinds, or choices within a particular group.

4.名詞B2
釋義

多樣性

各式各樣不同事物的豐富組合

A large number of different types, kinds, or choices within a particular group.

例句

The shop offers a rainbow of choices for customers who love tea.

這家店提供各式各樣的茶葉供顧客選擇。

pattern: a rainbow of choices/options

A good library has a rainbow of books on many different subjects.

好的圖書館有各種不同主題的書籍,琳瑯滿目。

同義詞
  • range

    neutral; a set of different items within a category

  • assortment

    suggests a well-chosen mix of items

  • variety

    most common; emphasises diversity

文法句型

a rainbow of + plural noun

用法筆記

Unlike sense 3 (about actual colours), this sense is figurative and describes diversity of things. Common in promotional or descriptive writing.

常見錯誤

The store has a rainbow for customers to pick from.
The store has a rainbow of choices for customers to pick from.
💡The pattern requires 'a rainbow of [something]'.

5. A long river fish that has a pink or red stripe along each side and is caught fo

5.名詞B1
釋義

虹鱒

一種帶有紅色條紋的食用淡水魚

A long river fish that has a pink or red stripe along each side and is caught for food or as a sport.

例句

Caio caught a large rainbow near the riverbank last weekend.

Caio 上週末在河邊釣到一條大虹鱒。

short form for rainbow trout; fishing context

The restaurant serves grilled rainbow with lemon and fresh herbs.

這家餐廳提供烤虹鱒,配上檸檬和新鮮香草。

同義詞
  • trout

    broader category; includes brown trout and other types

  • rainbow trout

    full name; clearer in most contexts

文法句型

a/the rainbow

用法筆記

Shortened form of 'rainbow trout', used mainly by people who fish. The full form 'rainbow trout' is more common in general English.

常見錯誤

I saw a rainbow swimming in the lake.' (confusing with sky phenomenon)
I saw a rainbow trout swimming in the lake.
💡When talking about the fish, use the full name 'rainbow trout' in general contexts to avoid confusion.

6. The youngest branch of the Girl Guides organization in Britain, for girls betwee

6.名詞B2
釋義

小小女童軍

英國四至七歲女童軍組織

The youngest branch of the Girl Guides organization in Britain, for girls between the ages of four and seven.

例句

Rachel's daughter joined the Rainbows when she turned four.

Rachel 的女兒滿四歲時就加入了小小女童軍。

proper noun; always capitalised

The Rainbows meet every Tuesday afternoon at the church hall.

小小女童軍每週二下午在教堂大廳聚會。

文法句型

the Rainbows

a Rainbow

用法筆記

Always capitalised. Refers to the organization (the Rainbows) or an individual (a Rainbow). This is specific to Britain; other countries use different names for similar groups.

7. An organised session held for the Rainbows — the youngest branch of the Girlguid

7.名詞
釋義

彩虹聚會

英國幼齡女童軍的例行集會活動

An organised session held for the Rainbows — the youngest branch of the Girlguiding UK organisation, for girls aged four to seven — where they take part in activities, crafts, and badgework together.

例句

Theo's little sister went to her first Rainbow meeting after school on Tuesday.

Theo 的妹妹放學後參加了她的第一次彩虹聚會。

proper noun: Rainbows as UK Guides group

At the Rainbow meeting, the girls made paper crowns and sang songs together.

在彩虹聚會上,女孩們一起做紙皇冠、唱歌曲。

用法筆記

Rainbow (capital R) refers specifically to the youngest section of Girlguiding UK, the national guiding organisation for girls and young women. This sense only appears in UK contexts and is not used in American English.

8. A girl aged between four and seven who has joined the Rainbows, the entry-level

8.名詞
釋義

彩虹成員

英國 Rainbow 童軍的四至七歲女孩

A girl aged between four and seven who has joined the Rainbows, the entry-level section of the Girlguiding UK organisation, and takes part in its meetings and activities.

例句

Zuri has been a Rainbow for six months and loves wearing her blue uniform.

Zuri 加入彩虹組織已經六個月了,她很喜歡穿藍色制服。

countable: a Rainbow = one member of the group

The group of Rainbows marched in the town parade behind their leaders.

一群彩虹成員跟隨小隊長參加鎮上的遊行活動。

用法筆記

Always capitalised when referring to a member of the UK Guiding organisation. The plural form is Rainbows (e.g. 'two Rainbows walked by'). Distinguish from sense 7 (RAINBOWS GROUP MEETING), which refers to the event rather than the person.

9. Something that seems wonderful and desirable but can never be reached or achieve

9.名詞B2
釋義

幻影;泡影

看似美好卻無法實現的願望

Something that seems wonderful and desirable but can never be reached or achieved in real life — like an imaginary perfect outcome that only exists in a person's dreams.

例句

The promise of easy money was just a rainbow with nothing behind it.

輕鬆賺錢的承諾只是一場幻影,背後什麼都沒有。

metaphorical: a rainbow = an impossible dream

Niran chased the rainbow of fame for years before realising it was making him unhappy.

Niran 追逐名氣的幻影多年,後來才發現這只會讓自己不快樂。

同義詞
  • pipe dream

    Informal; emphasises that the plan is unrealistic and will never happen

  • fantasy

    Broader; can refer to any imagined scenario, not necessarily a goal

  • mirage

    Emphasises the deceptive appearance of something real that is actually an illusion

反義詞
  • reality

    What actually exists rather than what is wished for

文法句型

a rainbow

chase a/the rainbow

用法筆記

Commonly used in the fixed phrase 'chase a rainbow' (pursue an impossible dream). This is a literary or figurative sense; do not use it in literal contexts about weather or colours.

rainbow — 形容詞