Time to say nothing

It was too expensive, to say nothing of the time it wasted.

这太贵了，更不用说它浪费的时间了。

《牛津词典》

It is not difficult to design XML with good grammar and good style, and doing so will save a lot of time and effort in the long run — to say nothing of how it will affect performance.

设计具有良好文法和良好样式的XML并不困难，而且这样做从长期来看最终将节省大量时间和精力—更别提它将对性能有怎样的影响。

At the same time, nothing in Honolulu or Cambridge or Chicago taught Obama what Clinton learned in Arkansas: how to reach out to these people and to know what, and what not, to say to them.

同时，檀香山，坎布里奇和芝加哥没有教会奥巴马那些克林顿在阿堪萨斯学会的的东西：怎样接触到普通民众，并学会哪些该，哪些不该对他们说。