You must not talk nonsense.

不许你胡言乱语。

youdao

I've told you before, you must not talk.

我已经告诉过你了，你不要说话。

youdao

You must not talk after light out.

熄灯后不许说话。

youdao

You must not talk after light out.

熄灯后不许说话。

youdao