When that keeps happening, the roots do not have enough time to recover.

VOA: special.2010.01.19

so that's great that a lot of people have enough time to be in something that's not math or science related.

很多人投入了时间，来做与数学或科学无关的事情，这真的太好了。

积极参与俱乐部活动 - SpeakingMax英语口语达人

No, I don't have enough time to exercise.

我一向来都不运动，因为我没有足够的时间。

Do you ever实战 - SpeakingMax英语口语达人

At the time, scientists believed that a person at the top of the mountain would only have enough oxygen to sleep.

VOA: special.2010.06.30

But the torrential rains have not stopped. They are expected to continue for several more weeks, enough time to add to the already extensive damage that has occurred.

VOA: standard.2009.09.05