we travelled by night as well as by day.为什么用by at为什么不行
题目
we travelled by night as well as by day.为什么用by at为什么不行
答案
by day和by night意思是,during the day ,during the night 就把它们当成固定搭配来记忆.
at night也是说得通的.但是at day说不通,通常说in the daytime,during the daytime,by dag等等
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