on school days的意思是什么?要准确的

on school days的意思是什么?要准确的 days on their own的汉语意思是什么就这一句的意思, on hot summer days的意思 On the summer days 的中文是什么 My school days.中文意思. 是at school days 还是 on school days 还是 in school days on school night还是nights on school day还是days every two days的中文意思是什么 I wear ___ uniform to school on school days? go on a school trip的意思 school things 的意思是什么 What do you do on rainy days的中文是什么 school days翻译成中文是什么? school days 里面,世界说的是什么练习? school days讲的是什么内容?讲的是什么内容?结局是什么?知道的说下, They seldom eat out on school days.此处的on为什么不用in?in不是加一段时间的吗? We can't _______(arrive) late on school days. Which he wore only on special days at school