你们的培训很准时英语

You must be on time

We must come to school on time every day.

起码是IN TIME 之类的吧，ON TIME是准点 踩着时间的那种，IN TIME才是及时准时的意思么we are to be at school in time. we must reach school in time.

您好！翻译为：You all must be on time. 望您采纳，谢谢您的支持！

抓住重点是准时，为什么要准时，你可以从准时的重要性来写，然后举例，最后下结论。因为是英语作文，如果不熟练，就先写成中文，然后再翻译过来。