You'll probably outsource some of the services that you use to run training coursesessions.
在培训课程期次进行当中，可能会利用外部的一些服务。
2
The course is made up of 12 two-hour sessions.
这门课总共上12次，每次两小时。
《牛津词典》
3
There was one mother who'd had a lot of trouble with her son. She came along for a couple of sessions, but she didn't have any faith in what the course could do for her.