by 这里算什么意思,什么用法?Too bad-- I missed the early train ____ only a fe_英语解答

by 这里算什么意思,什么用法?
Too bad-- I missed the early train ____ only a few minutes!
A by
B in
C at
D after
答案是A,但是这是什么用法呢?

人气：169 ℃　时间：2020-06-22 12:03:31

解答

by可以表示差额,如：I'm senior to you by two years.我比你大两岁.