1.need to 需要做

We need to stop trade protectionism.
我們需要制止貿易保護主義。

Three things need to happen.
我們必須做好三件事。

2.easy to 便于

The interface is clean and easy to use.
它的界面很清爽，便于使用。

It is easy to understand mrs obama's frustration.
人們很容易理解奧巴馬夫人的惱怒而又不知所措。

3.seek to 設法；企圖，試圖

Yet some expect him to seek to remove term limits.
可是，部分人士期望他設法廢除任期限制。

And they seek to benefit from tiny operational changes.
他們也自生產流程的細微變更中尋求收益。

4.work out 解決；作出

Britain, too, must work out what it wants from the eu.
英國也必須解決一個問題，即本國想從歐盟得到什么。

New cars often suffer quality glitches that auto makers try to work out over time.
新款汽車常常存在質量上的毛病，需要生產商花時間來解決。