This crisis might last for a long period of time.

此次危机可能会持续很长一段时间。

《柯林斯英汉双解大词典》

Be sure to do some eye exercises to relax your eyes after you study for a long period of time.

在长时间学习后，一定要做眼保健操来放松眼睛。

youdao

In fact, there is another type of friend—one that has not been with us for a long period of time, but fills our mind at some moment.

事实上，还有另一种朋友，他虽然很长一段时间没有和我们在一起，但却会在某个时刻充满我们的心灵。

youdao

"This experiment is unique because six people will be isolated for a long period of time and will work autonomously."

VOA: standard.2010.06.02

Clearly, important information is to be conveyed to students from people who settle in the fields for a long period of time.

显然，对某个领域,进行长时间研究的学者,会将重要的信息,传达给学生。

麻省理工公开课 - 媒体、教育、市场课程节选

If he's going to sit there on one chord for that amount of time, it's going to go on for a long period of time.

既然作曲家能放任一个和弦行进这么久，他一定有的是时间。

耶鲁公开课 - 聆听音乐课程节选

Argentina had a big bearing on that and they kept the ball for a long period of time.

BBC: Thomas hits back at Wales critics

Senator DURBIN: Well, it's exactly what the Democrats have been asking for for a long period of time.

NPR: Bush Lacks a Clear Plan on Iraq, Democrat Says

It's very, very rare to be in a vegetative state for a long period of time and wake up.

CNN: Waiting for our son to wake up