重点讲解：
1. go ahead 进行；
Go ahead! There's nothing to be afraid of.
干吧！没有什么可怕的7K~ujpdCmv@)=W*s7#o。
2. used to do sth. 过去常常；过去曾；
There is no doubt that the relationship between family members is not as close as it used to be.
毫无疑问，家庭成员之间的关系已经不像以前那么亲密aqTN+^H*8~5。
3. get along with （与…）和睦相处；
I want to get along with everyone.
我想和大家和睦相处~z)S_1H5fq~。
4. be good for 有利的；有益的；
The healthful air at the seaside is good for you.
海边健康的空气对你有好处sN1;hVgGu8GWDj*FpFZ。