1、B: No Of course not But what for
當(dāng)然不介意。但為什么呀？

2、SILENCE. Speak not but what may benefit others or yourself; avoid trifling conversation.
沉默寡言。言必于人于己有益；避免無益的談話。

3、Silence – Speak not but what may benefit others or yourself; avoid trifling conversation.
惜言——除非對他人或自己有益，否則不要開口；避免閑扯。

not but what翻譯