He used to sit up late studying.

他过去经常学习到深夜。

I never sit up late in the night.

我从来不会在晚上的时候迟睡。

We don't allow the children to sit up late.

我们不允许孩子们熬夜。

It's not right for children to sit up late .

让迟到的孩子罚站是不对的。

The doctor warned his patient not to sit up late at night.

医生告诫他的病人晚上不要熬夜。

You'll spend an unmentionable number of hours, and sit up late at night coding when you really should go to bed.

你将会花费难以数清的时间，并且，还要做在电脑前面编码到很晚，直到你不得不睡觉为止。

I shall get back very late, so don't sit up for me.

今晚我要回来得很迟，所以你不必等我回来再睡觉了。

Just for this evening, I will let you stay up late while we sit on the porch swing and count all the stars.

只是今天晚上，我就会让你熬夜虽然我们坐在门廊挥杆和指望所有的星星。

I have to sit up very late these days.

这些天我都得熬夜到很晚。

If we filed in late and had to sit up front, nine of us tried to slip in quietly.

如果我们一行九人来晚了只好坐在前面，我们便尽可能悄悄地溜进去。

You should not sit up too late at night .

你不应该在夜里很晚才睡觉。

You could sit up as late as you pleased, and, whenever you got up, go abroad without any landlord or house-lord dogging you for rent.

你可以随心所欲，长夜坐而不寐；起身出外时，也不会有什么大房东二房东拦住你要房租。

If you are late to class 100 push ups and sit up before bowing in.

如果迟到的话，100个俯卧撑惩罚后才可以踏上垫子。

Its bad for your health to sit up to late at night.

晚上睡得太晚对你的健康有害。

It's bad for your health to sit up to late at night.

晚上睡得太晚对你的健康有害。

Don't sit up if I'm late.

如果我回来晚了，不要不睡等我。