session

上周五，那位21岁的跑步者在一次训练中扭伤了脚踝。

The 21-year-old runner twisted his ankle in a training ___session last Friday.

当国家元首们聚集时，媒体被允许进入进行拍照环节。

As the heads of state gathered, the press were allowed in for a photo ___session.

春季学期将在三月份开始。

The spring ___session will begin in March.