1.refugee n.避难者，难民
例句：They stay here a few hours before being sent to refugee camps, which are now almost full
他们在这儿呆了几个小时后被送往难民营，而那里现在几乎已经满员了。

2.advertising n.广告; 广告业; 做广告，登广告
例句：This raises doubts about the point of advertising
这对做广告的意义提出了疑问。

3.recommend vt.推荐; 劝告; 使显得吸引人; 托付
例句：I have just spent a holiday there and would recommend it to anyone
我刚刚在那里度过假，很想把它推荐给每一个人。

4.president n.总统; 总裁; 校长; 董事长
例句：The White House says the president would veto the bill.
白宫称总统将否决这项议案。