不合格的项目，不准进行下道工序。

Unqualified project, not to the next working procedure.

youdao

如果你拿不准是否应进行这种锻炼，咨询一下医生好了。

If you are in any doubt as to whether you should be doing these exercises, consult your doctor.

《牛津词典》

而且我们说不准这样一款产品将通过什么零售渠道进行销售。

And we're not sure how the retail distribution will work for something like this.

youdao