Definition
- C2
In addition to what has already been mentioned; used to emphasize the significance of the next point.
更不用说；而且；更别提。
The trip will be very time-consuming, to say nothing of the cost.
这次旅行会非常耗时，更不用说费用了。
He was not only late, but also didn't bring a gift, to say nothing of an apology.
他不仅迟到了，而且还没带礼物，更别提道歉了。
The report is poorly written, to say nothing of the flaws in the research.
这份报告写得很差，更不用说研究中的缺陷了。