[Prepositions] Use preposition let sentence more powerful

介係詞是句子中的精靈，它和動詞組在一起，會增加動詞的強度、亮度，使動詞更具動感，像 speak up 就比單單 speak 有力。

我們一起來看以下的句子比較 at、behind、by、on、with，這些小小的介係詞真的起了「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。

I couldn’t believe my ears when I heard this.

=> I couldn’t believe my ears at this.

(2) 她死後留下6個孩子。

She left six children after she died.

=> She left six children behind her.

(3) 如果需要幫助，打給我，號碼是2721-5033。

If you need help, just ring me. My telephone number is 2721-5033.

=> If you need help, just call me at 2721-5033.

(4) 我們舉杯慶祝他的成功。

We raise a toast to congratulate him on his great success.

=> 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。

There are so many new words in this passage, so it is hard for me to understand.

=> With so many new words, this passage is beyond me.

(6) 他因為30票之差輸了競選。

He lost the election because of 30 votes.

=> He lost the election by 30 votes.

(7) 證據對他不利。

The evidence is not good for him.

=> The evidence is against him.

(8) 我可以幫你完成這個專案。

I can help you finish the project.

=> I can help you with the project.

(9) 我買單。

I’ll pay the bill.

=> It’s on me.