我們一起來看以下的句子，比較A與B句，你會驚嘆介系詞的魅力與表現力。B中出現的at, behind, by, on, with等都是常見的介系詞，但這小小的介系詞真的起了「畫龍點睛」的作用。

1、當我聽到這事時，我簡直不敢相信我的耳朵。
A：I couldn't believe my ears when I heard this.
B：I couldn't believe my ears at this.

2、她死後留下六個孩子。
A： She left six children after she died.
B： She left six children behind her.

3、如果需要幫助，就給我打電話，號碼是27215033。
A： If you need help, just ring me up. My telephone number is 27215033.
B： If you need help, just ring me up at 27215033.

4、我們舉杯慶祝他的成功。
A： We raise a toast to congratulate him on his great success.
B： We raise a toast to his great success.

5、這段文章生詞太多，我要理解真是太難了。
A：There are so many new words in this passage, so it is hard for me to understand.
B：With too many new words in it, this passage is beyond me.

6、他因為30票之差輸了競選。
A：He misses election because of 30 votes.
B：He missed election by 30 votes.

7、證據對他不利。
A： The evidence is not good for him.
B： The evidence is against him.

8、我可以幫你完成這個專案。
A： I can help you finish the project.
B： I can help you with the project.

9、我買單。
A： I'll pay the bill.
B： It's on me.

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