1. 表述：know one’s onions

释义：To be very knowledgeable or skilled in some area.（在某领域非常有知识和技能，内行）

例句：I think Nicole is our best candidate for the job—when it comes to corporate accounting, she really knows her onions.

我认为Nicole是我们公司最适合这份工作的人选。说到公司会计，她真是内行。

She really knows her onions in the historical field.

她在历史研究方面很有经验。

If you want advice on stocks, go to ask Livermore. He has an excellent track record and he certainly knows his onions.

如果你想要股票方面的意见，去问问Livermore好了，它的历史记录一直很好，绝对精通这个领域。

2. 表述：soup up

释义：To modify something in order to increase its power or performance.（加大马力）

例句：He's spent a fortune souping up his car for drag racing.

他花了一大笔钱改装他的汽车以供飙车比赛。

He souped his car up so it will do nearly 120 miles per hour.

他加大了汽车的马力，使它能以每小时近120英里的速度行驶。

If only I could soup up this computer to run just a little faster.

要是我能使这台电脑运行得快一点就好了。

3. 表述：sell like hotcakes

释义：To be sold quickly and in large quantities. （畅销）

例句：This record has been selling like hotcakes—I can't keep it in stock!

这张唱片卖得很好，我没有存货。

The books sell like hot cakes. There 's not much left over.

这书籍非常畅销，存货已不多了。