nine o'clock 的后面能不能加am或pm,19:52的的后面能不能加am或pm

nine o'clock 的后面能不能加am或pm,19:52的的后面能不能加am或pm nine o'clock 的后面能不能加am或pm,19:52的的后面能不能加am或pm nine o' clock 的意思 at five o｀clock 后面的 o＇clock必须加么 School at nine o’clock School ______at nine o'clock. School s____at nine o'clock. It is nine o clock . nine o clock in the 英语中时间表达的问题在两点：at two o'clock this afternoon能不能把后面的o'clock省略,表达为：at two this afternoon? 答句时间前面不加at行吗? 比如A.Nine o'clock书面语中？ 一个英语超级基础的问题,①eight o'clock 为什么 后面不加s School starts at nine o'clock. what____he____do at nine o'clock yesterday?(do) it's nine o'clock翻译? 改写句子 It'nine o'clock. nine o' clock全写是什么 Schooi _________(begin) at nine o'clock.