Do not mention it. 不客气. You are very welcome. 不客气. You're very welcome. 不用客气. Don't mention it. 不客气. You are welcome. 不客气. No trouble. 不客气（没有麻烦）. Please do not mention it. 请不用客气. His answer wants politeness. 他的回答不够客气. Offensive in manner. 2没关系 It doesn't matter. .It's nothing. .That's all right.4.Never mind.
