You don't know when to butt out.

你不知道在什么时候闭嘴。

I don't know when to use them.

我不知道什么时候该用它们。

God, you don't know when to quit.

天啊，你还真不知道分寸。

I don't know when the storm will return.

我不知道风暴什么时候会回来。

Still, we don't know when to expect it.

尽管如此，我们也不知道它何时与大家见面。

Widgets do not know when they are being manipulated.

而小部件的操纵也时机未知。

I don't know. When I feel like it?

不清楚 等我想回去了？

I don't know. When are we starting sections?

我不确定从第几周开始有讨论课？

People usually do not know when the disease will attack.

人们通常不知道该疾病会在什么时候发作。

I don't know when you have time to study.

你还有时间学习吗？

I know, but he didn't know when to stop.

我知道，但他不知道什么时候停下来。

It does not know when these new refugees will arrive.

它不知道这些新难民何时会到达。

I don't know when I've had a roast.

我都不记得什么时候吃过烤肉。

It's not known when exactly people are contagious once they've contracted it.

我们也不知道人们感染病毒后何时会具有传染性。

I don't know when this happened like when-- I missed that march.

我不知道这是什么时候的事，我很怀念这个游行。

Right now we don't know when the interviews will resume.

现在我们不知道面签什么时候会继续。

" You just don't know when to give up, do you? "

“你就是不知道什么时候放弃，是不是？”

Well, I-I don't know when he'll be home.

我不知道他什么时候回家。

Sometimes I don't know when to use " I" or " me" .

有时候我不知道什么时候用 I 或 me。

You just don't know when to let go, do you?

你就是不知道何时该放手是吗？