请不要向下看你的手机，专心听讲。

Please don't look down at your phone, pay attention to the lecture.

所以我请你们一定专心听讲。

This is the last class in French, so I beg you to be very attentive.

能专心听讲音乐

Listens attentively and talks about music

他上课专心听讲， 眼睛紧盯着黑板。

He was listening attentively in class, and his eyes were fixed on the blackboard.

孩子们，我要求你们在课堂上专心听讲。

Now children, I want you to be all ears in class.

学生们之间可以进行更多学习上的互动，而不必拘泥于专心听讲。

Instead of it being focused on the lecture, students can interact with each other.

当你在课堂上集中注意力专心听讲学习时，偶尔的想要休息一下的念头可能会影响你的学业。

When attending a class, the urge to break off from paying attention and foray into reddit for some browsing and light learning can really effect your grades.