You've got to attend class and pay attention while in class.

你得去上课，而且得上课时得留心听讲。

youdao

Today, while in class, I gathered my stuff and got up. A minute later I hear a girl say, "Oh, Jessica left?"

今天在教室里我一边收拾东西一边站起来，过了一会我听到一个女孩说：“杰西卡要走了？”

youdao

Today, while in class, I gathered my stuff and got up. A minute later I hear a girl say, "Oh, Jessica left?"

今天在教室里我一边收拾东西一边站起来，过了一会我听到一个女孩说：“杰西卡要走了？”

youdao