你必须仔细听老师讲的话。

You must listen to the teacher carefully.

youdao

请仔细听老师讲的。

Please listen to the teacher carefully.

youdao

要仔细听才能听懂老师讲的课。

Listen carefully so as to follow the teacher.

youdao

要仔细听才能听懂老师讲的课。

Listen carefully so as to follow the teacher.

youdao