冀教版四年级上册英语
Lesson 22 At the Supermarket
be good at
知识点
be good at
擅长；健；精通；熟谙
例句：
A good listener must be good at asking questions.
一个好的聆听者应该善于问问题。
知识点
例句：
Be good at communicating and expressing.
善于与人交往及沟通，善于表达.

A good listener must be good at asking questions.
一个好的聆听者应该善于问问题。
知识点
be bad at
不擅长
例句：
I pretended to be bad at math so that you'd help me.
我假装数学不好，这样你就可以教我。
知识点