轮流

At the moment it is being presided over by each member in turn.

那时, 每成员主持。

The post of chairman rotates among members of the committee.

主席一职由委员会的成员担任。

We cleaned the classroom alternately.

我清扫教室。

At summer picnics,there is often an informal baseball game.Boys and girls,the young and the old,take turns to bate.Each team has 9 plyers.

夏日夜餐时，经常有非正式的棒比。男孩女孩，年轻的年老的，都会比。每队有9员。

Play your favorite carrom with AI (CPU) or with your friend, control your shots, pocket the queen, clear the board, select from different modes and have a blast.

四人互弹，路人不时围观，一场比准确度和智慧的进洞比。