1 [C] a period of doing a particular activity (从事某活动的)一段时间:
The whole tape was recorded in one session.整卷录音带都是在一节时间内录成的。She has a session at the gym every week.她每星期去健身房做一回运动。
2 [C,U] a formal meeting or series of meetings of a court of law, parliament, etc (法庭的)开庭;(议会等的)会议