periodically

Mailing lists are updated periodically.

邮寄名单定期更新。

Lemmings periodically commit mass suicide, and no one knows just why! The small creatures, which inhabit the Scandinavian mountains, sustain themselves on a diet of roots and live in nests they make underground.

旅鼠周期性地集体自杀，没有人知道究竟为什么！这种生活在斯堪的那维亚山脉的小生物，以树根为食，住在它们在地下建造的巢穴里。

Periodically review their emerging strengths and weaknesses with kids and work together on any shortcomings, like difficulty in communicating well or collaborating.

定期与孩子们一起回顾他们新表现出来的优点与缺点，然后共同努力克服诸如难以与人沟通或协作的困难。

The student will periodically check his experimentation.

这个学生会偶尔检查他的实验。