1、teacher 老师，教师，先生。

I have a good friend who"s a teacher.

我有一个朋友是教师。

2、worker 劳动者，工人，工蜂。

The society was looking for a capable research worker.

该协会在物色一位有能力的研究人员。

3、however 然而，可是，无论如何。

However we adopt healthcare reform, it isn"t going to save major amounts of money.

不管我们采取何种医疗改革措施，都省不下太多钱。

4、forever 永远，不断地，无休止地，经常。

I think that we will live together forever.

我想我们会永远生活在一起。

5、employer 雇主，老板，雇佣者。

He had been sent to Rome by his employer.

他已被老板派往罗马。