別那麼客氣 的英文怎麼說?

[1] Don't feel obligated to..[2] I don't want to trouble you.[3] I don't want to impose (on you).[4] I don't want you to go to any trouble.

Don't feel obligated to 字面意思是別感到有義務做某事，也就是「不需要太客氣」的貼切翻譯，其他的句子如 I don't want to impose on you 也有「不需要太客氣」的意思。

有時候可以用更白話的說法，例如:

Are you sure? You don't have to do that.

的意思是 "你確定嗎? 你不需要這麼做的"，也有 "不需要太客氣" 的意思。