1.expect to 期许

You cannot expect to like all the people you will work with.
不要指望你会喜欢所有和你共事的人。

I do expect to have some time to myself in the evenings.
我确实希望晚上能有些属于自己的时间。

2.take part in 参加…，参与…活动

I was quite sulky, so I didn't take part in much.
我很烦，所以没有积极参与。

People who take part in sports must be in condition.
参加运动的人一定能保持良好的健康状态.

3.encourage to 鼓励

The idea is to encourage people to get to know their neighbours.
其目的是促使人们结识邻居。

How can faculty improve their teaching so as to encourage creativity?
教师们如何才能改进教学以激发创造性呢？

4.account for 解释；说明；占；说明…的原因

Ministers should be called to account for their actions.
部长们应该对他们的行为作出解释。

The social services account for a substantial part of public spending.
社会福利事业占了一大部分的公共支出。