sag

IPA/sæɡ/
KK[sˈæɡ]IPA/sæɡ/

sag — 動詞

  • sagpresent simple I / you / we / they
  • sags3rd person singular
  • sagging-ing form
  • saggedpast simple

1. to bend or drop downwards in the middle, especially because something heavy is p

1.動詞及物 / 不及物B1
釋義

下垂；凹陷

因重力或失去支撐而往下彎

to bend or drop downwards in the middle, especially because something heavy is pressing on it or because it has lost its original firmness — for example, a mattress sagging after years of use, or a rope sagging under a load.

例句

The old wooden shelf began to sag under the weight of too many books.

那塊舊木層板承受不了太多書的重量，開始往下凹陷。

sag under the weight of [sth]

After years of use, the mattress in the guest room had sagged in the middle.

用了幾年之後，客房床墊的中間已經凹陷下去。

sag in the middle

同義詞
  • droop

    focuses on hanging or bending limply, often from one end (a drooping flower)

  • slump

    suggests a heavier, more sudden collapse (slumping into a chair)

  • sink

    implies downward movement into something (sinking into soft ground)

反義詞
  • tighten

    opposite in the sense of a rope or cable becoming taut

  • rise

    opposite of downward movement

文法句型

intransitive: [subject] + sag

transitive: [subject] + sag + [object]

用法筆記

Frequently intransitive; the transitive use (e.g. "the weight sagged the shelf") is less common in everyday speech.

常見錯誤

❌The heavy bag sagged the hook.
✅The hook sagged under the weight of the heavy bag.
💡'sag' describes the object that bends or drops, not the thing causing the pressure.

2. to become weaker, less active, or less successful over a period of time — for ex

2.動詞不及物B1
釋義

衰退；減弱

力量、價格或需求逐漸下滑

to become weaker, less active, or less successful over a period of time — for example, sales sagging in a slow season, someone's energy sagging in the afternoon, or morale sagging after repeated setbacks.

例句

Sales of the company's flagship product sagged by fifteen percent last quarter.

該公司旗艦產品的銷售額上季下滑了百分之十五。

sag by [amount/percentage]

Student motivation often sags during the final weeks of the school term.

學期最後幾週，學生的學習動力往往會減弱。

同義詞
  • decline

    more formal and gradual; can apply to health, quality, or quantity

  • drop

    suggests a quicker, more noticeable decrease

  • dip

    implies a temporary and often small decrease

反義詞
  • rise

    opposite direction for prices, sales, or demand

  • improve

    opposite for morale, energy, or performance

文法句型

[subject] + sag

[subject] + sag + (by + amount)

用法筆記

Common with economic or quantitative subjects (sales, demand, prices, profits). For personal energy, often used with 'feel' or 'begin to'.

常見錯誤

❌The price was sagged last month.
✅The price sagged last month.
💡In this sense, 'sag' is intransitive and is not used in the passive voice.

sag — 名詞