不好意思，我告退(失陪)一会儿。

Excuse me. May I leave for a little while?

不知能否恕我暂时告退。

I wonder if I may be excused for a moment.

不知你是否能恕我暂时告退。

I wonder if you'd excuse me for a moment.

我不想陷入窠臼所以才告退。我但愿能向前迈进。

I quit because I don't want to be stuck in a rut. I want to move on.

不外，若是你若是想给自己留条后路，就不要休了假然后返来就立刻宣布揭晓告退。

But if you don't want to burn any Bridges, don't take vacation and announce your departure just after you return.