"Don't disturb him" 就是 "别打扰他" 的意思。
这个短语源自英语中的动词 "disturb"，意思是 "打扰"、"妨碍"。"Don't" 是 "不要" 的意思，加在动词前面就成了禁止动作的意思。
例句:
"Please don't disturb him while he's working." (请别打扰他工作。)
"Can you not disturb me while I'm studying?" (你能不能在我学习时别打扰我？)
"I don't want to be disturbed tonight, so please turn off your phone." (我今晚不想被打扰，请关掉你的手机。)