There's no telling how long the talks could drag on.

谁也说不准谈判还会拖多久。

柯林斯例句

You do not hit my grandchildren, do you understand?

你不准打我的孙子孙女，明白吗？

柯林斯例句

Children unaccompanied by an adult will not be admitted.

儿童无成年人陪伴着不准入场.

《简明英汉词典》

He's been taken to task for his habitual lack of punctuality.

他因为经常不准时而受到批评.

《简明英汉词典》

From now on no one is to mention that slip of paper.

以后,谁也不准提到这张纸条的事情.

《简明英汉词典》

According to the rules, no alcohol can be consumed on the premises.

按照规定, 场内不准饮酒.

《简明英汉词典》

My watch is out of fix; it's five minutes fast.

我的手表不准, 快五分钟.

《简明英汉词典》

Suzhou has a ban on parking cars in this busy street.

苏州有条禁令,不准在这条热闹的街上停车.

《现代汉英综合大词典》

The soldiers had orders to allow no strangers through the gates.

士兵们接到命令,不准外人进入大门.

《现代汉英综合大词典》

No one is allowed to get his ticket out of turn.

任何人都不准不按次序买票.

《现代英汉综合大词典》

The soldiers were prohibited from leaving camp after dark.

天黑后士兵不准离开营房.

《现代英汉综合大词典》

She was in doubt whether she was right.

她对她是否正确拿不准.

《简明英汉词典》

No referring back to books or notes!

不准看书和笔记!

《简明英汉词典》

It's anybody's guess who she'll eventually marry.

她最终将嫁给谁,这是谁也拿不准的事.

《简明英汉词典》

Either your watches or mine is wrong.

不是你们的表不准,就是我的表不准.

《简明英汉词典》