1. 名詞
   成本, 費用
   價錢, 價格
   the cost for ...(事物):
   ...的成本
   ...的費用
   ...的價錢
   ...的價格
   the cost to ...(人):
   ...需付的成本
   ...需付的費用
   

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   同義字詞
   charge,disbursement,expenditure,expense,outgo,outlay
   ante,charge,damage,fee,figure,freight,price,price tag
   price
   

2. 動詞
   不及物動詞:
   花費
   需付出代價, 需付出時間
   需付出勞力
   及物動詞:
   花費...(人)
   使...(人)付出代價
   使...(人)付出時間
   使...(人)付出勞力
   喪失掉...(事物)
   

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   同義字詞
   bring,fetch,go (for),run,sell (for)
   

3. 副詞
   at a cost of ...(價格、費用等):
   以花...
   at a/an ...(形容詞) cost:
   以...代價
   at a/an ...(A: 形容詞) cost in ...(B: 事物):
   以(A)(B)代價
   at the cost of ...(事物):
   以...為代價
   at cost to ...(事物)/
   at a cost to ...(事物):
   

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4. 形容詞
   low-cost:
   價格便宜的
   廉價的
   cost-effective/
   cost-efficient:
   有成本效益的
   (指成本上)划算的/
   合算的/
   划得來的
   開銷適當的
   

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5. 語法
   it'll cost you:
   要花很多錢
   會很貴
   it'll cost you to ...(動詞...):
   做...要花很多錢
   做...會很貴
   (問句)at what cost:
   代價是什麼?
   

例句

1. We did that at enormous cost .
2. The gift was said to cost $1,000.
3. How does an expense differ from a cost ?
4. That delay should have cost many careers.
5. I wanted to escape from home at any cost .
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