percent

percent — 副詞

1. used after a number to show how many parts there are in each hundred, whether wr

1.副詞B1
釋義

百分之

表示每一百中的多少

used after a number to show how many parts there are in each hundred, whether written in words or with the sign %.

例句

Only 12 percent of the class brought raincoats to school today.

今天全班只有百分之十二的人帶雨衣來學校。

number + percent of + noun

Gas prices rose 5 percent after the holiday weekend.

假日週末過後，油價上漲了百分之五。

rise + number + percent

同義詞

文法句型

number + percent + of + noun

rise/fall + number + percent

be at + number + percent

用法筆記

Follows an exact number and commonly appears with 'of' before the group or whole being measured. In British writing, the two-word spelling 'per cent' is also common.

常見錯誤

❌Only 12 percent students came.
✅Only 12 percent of the students came.
💡use 'of' before the noun phrase that names the whole group.
❌Prices rose by 5 percentages.
✅Prices rose by 5 percent.
💡use 'percent' after a number, not 'percentage' in this pattern.

2. used, especially with 100, to mark how strong your certainty, agreement, or beli

2.副詞B2
釋義

確定；同意

表示把握或認同程度

used, especially with 100, to mark how strong your certainty, agreement, or belief is about something being true.

例句

I'm 100 percent sure Leo left his keys on the kitchen table.

我百分之百確定 Leo 把鑰匙放在廚房桌上了。

100 percent + sure

Rina does not 100 percent agree with the new school rule.

Rina 並不百分之百同意這條新的校規。

100 percent + agree

同義詞
  • definitely

    fits certainty, but not exact agreement percentages

  • certainly

    formal or neutral marker of strong belief

  • fully

    works especially with 'agree', not with all certainty statements

反義詞
  • doubtfully

    rare and stylistically marked opposite showing doubt

  • partly

    used when agreement or confidence is incomplete

文法句型

100 percent + sure/certain/convinced

100 percent + agree

number + percent + sure

用法筆記

Most common with '100 percent' and words such as 'sure', 'certain', 'agree', and 'convinced'. Distinguish from sense 3: this sense grades belief or agreement, rather than saying something is complete in itself.

常見錯誤

❌I am percent sure he called.
✅I am 100 percent sure he called.
💡this use needs a number before 'percent'.
❌I 100 percent am agree.
✅I 100 percent agree.
💡place 'percent' before the main verb, not inside the verb phrase.

3. used for strong emphasis to say that something is complete, total, or leaves no

3.副詞B2
釋義

完全；十足

強調程度達到完整或徹底

used for strong emphasis to say that something is complete, total, or leaves no room for doubt.

例句

This soup is 100 percent vegetarian, so Ken can eat it.

這道湯是百分之百的素食，所以 Ken 可以吃。

100 percent + adjective

By Friday, the team was 100 percent ready for the final.

到了星期五，這支隊伍已經百分之百準備好打決賽。

同義詞
反義詞

文法句型

100 percent + adjective

100 percent + past participle

be 100 percent behind + noun

用法筆記

Common in speech and informal writing with adjectives, past participles, and phrases like 'behind the plan'. Distinguish from sense 2 when the speaker is not measuring confidence or agreement, but stressing completeness.

常見錯誤

❌The room is percent clean now.
✅The room is 100 percent clean now.
💡this emphatic use normally needs a number, especially 100.
❌I am 100 percent with this idea.
✅I am 100 percent behind this idea.
💡'behind' is the usual preposition for support.

percent — 名詞

percent — 形容詞