关于英语中介词 in 的用法,劳驾

题目

关于英语中介词 in 的用法,劳驾
how many times a year.
为什么不是 how many times " in " a year.

答案

1.在...里,在...上The two brothers study in the same class. 两兄弟在同一个班里上课. The telephone is in the little study on the ground floor. 电话在一楼的小书房内. 2.在...之内;在...方面He is lacking in...