Sometimes our immune systems need a refresher course, which is why we get booster doses of some vaccines.

免疫系统有时也需要提神，这就是为什么我们要注射加强针的原因。

It provides a variety of programs-from one-week refresher courses for those who already have a career to a year-long fulltime training course.

该校提供了各种各样的项目一从对那些已经有职业生涯经历厨师的一周进修课程到为期一年的全职培训课程。

Matching a junior employee with an executive whose understanding of diversity and other generational divides may need a refresher course could have benefits.

将初级员工与高管搭配，高管对多样性和其他代际差异的理解可能也需要进修一下，这时反向指导可能会带来好处。

Look, I know it's an imposition, but Danielle is away on a class trip, and Andrew is back at camp Hennessey for a little refresher course.

我也知道这有点不妥，但Danielle跟班级野营去了，Andrew在Hennessey营地参加复训课程。

Yes, hello. I've been referred to you because I'm enquiring about the refresher courses that you run. I'd like to find out a bit more about them.

你好。我想找你询问一下你的进修课程。我想多了解点儿信息。

Are you kidding? He made me sign a waiver, participate in an emergency fire drill and take a refresher course in CPR. Thank God he had a dummy.

怎么可能不知道 他逼我签了免责书 参加了紧急消防演习 还复习了心脏复苏术的课程 还好他有个人体模型。