There was no teacher in the evening. So at the end we would have a chat.

晚自习一般没老师，最后一节我们经常侃。

youdao

Don't chat and chat, then casually mention the favor at the end.

不要聊个没完，到结束时才突然提出请帮忙的事。

youdao

Don't chat and chat, then casually mention the favor at the end.

不要聊个没完，到结束时才突然提出请帮忙的事。

youdao