If play is interrupted by the umpire or assistant umpire 裁判员或副裁判员暂停比赛。
2.
The assistant umpire is the person appointed to assist the umpire with certain decisions 被指定协助裁判员并赋予特定裁决权者，称为“副裁判员” 。
3.
It is the responsibility of the player to serve so that the umpire or the assistant umpire can see that he complies with the requirements for a good service 运动员发球时，应让裁判员或副裁判员看清他是否按照合法发球的规定发球。
