1、work out

想出，得到(解決方法);解(謎)

Negotiators are due to meet later today to work out a compromise.

談判人員定于今天晚些時候進行會談，商定一個折中方案。

It took me some time to work out what was causing this.

我花了一些時間才弄清此事的起因。

計算出，解出（數學題答案）

It is proving hard to work out the value of bankrupt firms' assets.

清算破產公司的資產值其實很困難。

When asked what a 40.35 meal for five people would cost each diner, they were unable to work it out.

問到5個人吃一頓飯花了40.35英鎊，每人要出多少錢時，他們算不出來。

(如期）發生；進展(順利)

Things just didn't work out as planned.

事情根本沒有按計劃進行。

I hope it will work out well.

我希望進展順利。

2、expand

擴充;擴大;增加

Engineers noticed that the pipes were not expanding as expected.

工程師注意到管道并沒有如預期那樣膨脹。

The money supply expanded by 14.6 per cent in the year to September.

截至9月，當年的貨幣供應增加了14.6％。

擴大；發展；擴展

The popular ceramics industry expanded towards the middle of the 19th century.

到19世紀中期，大眾制陶業得到了發展。

The interest rate's coming down. I'll be able to expand or stay in business.

利率正在降低，我可以擴大公司或者維持經營。