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。