after class的用法和樣例：
例句
- Please wait behind after class today.
今天課後請你留下。 - The teacher told him to stay behind after class.
老師要他下課後先別走。 - I have heard something very funny. I'll let you in on it after class.
我聽到一件很滑稽的事。下課后告訴你。 - The students flocked round their teacher after class to ask many questions.
下課后學生們聚集在老師身邊問了許多問題。
