你必须仔细观察老师在课堂上所做的一切的翻译：All you have to observe carefully the teacher in class do 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

You must carefully observe the teacher in the classroom doing

All you have to observe carefully the teacher in class do

You must observe teacher carefully all which does in the classroom

You must carefully observe in the classroom teachers have to do

All you have to observe carefully the teacher in class do