What officials are there in a water polo game?

水球比赛有哪些裁判人员？

youdao

The competition combines underwater robots with water polo game for the first time, in which biomimetic robotic fish play polo in the water.

该项目首次将水下机器人和水球运动结合起来，采用仿生机器鱼在水中进行水球比赛。

youdao

Arena polo is such an exciting form of the game and it will be truly special to play it at such an iconic venue in front of so many supporters.

室内马球比赛非常刺激，在那么多支持者面前、在标志性的场馆里进行比赛，确实非常特别。

youdao

The ancestor of polo, this traditional game of horsemen is played with a dead goat rather than a ball.

BBC: Following the Silk Road to the end of China

At practice, if the kids seem spent, he'll end the workout midway through and start a game of water polo.

WSJ: Missy Franklin: How Not to Ruin a Swimming Prodigy

Since it is within the high-security environs of the PM's residence, no regular polo fans will ever see a game there.

CNN: CAN THIS MAN MEND PAKISTAN?