1.look for 寻找

Look for a second job or odd jobs.
找第二份工作或者做零工。

Always look for ways to improve.
总是寻找不同的方法改进。

2.responsible for 为…负责，是造成…的原因

One person should be responsible for new employee orientation.
应当有一个人负责新员工的培训。

South korea created a cabinet-level ministry responsible for gender equality.
韩国设立了专门负责性别平等问题的内阁部门。

3.add to 增加,加强

What provisions would you add to this one?
你会为再添加什么乐观信条吗？

Mr obama offers only to add to its complexity.
奥巴马的提议却只会增加它的复杂性。

4.clear up 治疗；处理；解释

I wonder when it'll clear up.
不知道什么时候能放晴。

One thing the american legislation will try to clear up is who owns edr data.
美国法律将会澄清的一件事情是谁拥有事故数据记录器的数据。