no problem

1. 1.

   Certainly, sure (said when granting a request).

   当然,没问题(表示同意请求时所说)。

2. 2.

   No thanks are necessary; you're welcome (said in response to an expression of gratitude).

   不用谢；不客气(回应感谢时说)。

3. 3.

   No apology is necessary; think nothing of it (said in response to an expression of regret).

   不必道歉；没关系(回应歉意时说)。

不用谢；不客气(回应感谢时说)。；不必道歉；没关系(回应歉意时说)。