(1)Not at all.不用谢./没关系.
(2)That's all right.不用谢./没关系.
(3)That's OK.不用谢./没关系.
(4)It's nothing.没什么./没关系.
(5)Don't mention it.不要客气.
(6)Forget it.忘掉它.
(7)No problem.没问题.
(1)Not at all.不用谢./没关系.
(2)That's all right.不用谢./没关系.
(3)That's OK.不用谢./没关系.
(4)It's nothing.没什么./没关系.
(5)Don't mention it.不要客气.
(6)Forget it.忘掉它.
(7)No problem.没问题.