This is not correct; the proper time to reject changes is when the changes are made.

When's the proper time to shake their hand?

该什么时候和他们握手?

The author holds proper time for treatment and close observation will produce better clinical effects.

治疗中只要掌握好适应时机,注意观察,可收到较好的临床效果.

To him that does everything in its proper time , one day is worth three.

办事有条理, 一日顶三日.

I advise waiting till the proper time.

我建议等到适当的时候.

Listen carefully and give response at proper time.

要注意倾听并适时作出反应.

We'll consider D / P terms at a proper time in the future.

将来合适的时候,我们可以考虑付款交单的方式.

We will produce him at a proper time.

我们将在适当的时候把他传来.

We will produce him at the proper time.

我们在适当的时候,会传问他的.

They suggested waiting until the proper time.

他们建议等到恰当的时机才行动.

The worn parts have been replaced at the proper time, or a damage might have happened.

磨损的部件及时更换了, 否则就会发生破坏.

He forgot ( about ) her birthday, ie did not remember it at the proper time.

他把她的生日忘了.

I shall take my leave for the present and report myself at the proper time.

我将暂时告假,日后准时报到.

The cue for that will be given at the proper time.

这方面的指示将在适当的时候发出.

Recommends the proper value of pressure difference between negative pressure wards and adjacent clean zones.

给出了负压病房和相邻洁净区域压差的推荐值.

properly trained staff

训练有素的员工

You acted perfectly properly in approaching me first.

你先来找我是完全对的。

The brakes don't seem to be working properly.

刹车似乎出了问题。

You're too thin. You're not eating properly...

你太瘦了。你的饮食不合理。

He's a spoilt brat and it's about time he learnt to behave properly...

他是个被宠坏的孩子，是该学些规矩了。

How much money do we need to do the job properly?

我们需要多少钱才能做好这件事？