High employee turnover has been a recurring problem throughout the hospitality industry.

员工流失率高一直是整个服务业反复出现的问题。

Experts say it's a recurring problem at this spot in Bosnia and Herzegovina.

专家表示，这是波斯尼亚和黑塞哥维那这个地方反复出现的问题。

But because of recurring security problems, we've had to suspend those for the time being.

但由于反复出现的安全问题, 我们不得不暂停。

So drought can be a major, recurring problem for people, animals, and plants.

因此，干旱可能是人类、动物和植物面临的一个主要的、反复出现的 问题。