1.We should learn and master idiomatic English. 我们应该学习并掌握地道的英语。
2.You should improve your oral English. 你应该提高你的英语口语。
3.They've already had a good command of the English language.
他们已经很好地掌握英语语言。
4.This word doesn't go with the verb. 这个词不能和动词搭配。
5.Although he can speak English pretty well,he still doesn't know enough vocabulary.
尽管他英语讲得很好，但是他认识的词汇还不够。
6.He reads a lot in English, so his reading comprehension is better than others.
他读很多英语书，所以他的阅读理解比其他人好。
