Noun:

1. a game played in a swimming pool by two teams of swimmers who try to throw an inflated ball into the opponents' goal

wateragen.水路运输；其运费watern.水；海域；雨水；海水v.给 ... 浇水；给 ... 供水；加水稀释；充满眼泪；给...水喝water resourers水资源water evaporate水面蒸发water of spring山泉水water and power水和电water- supply供水water-controln.治水water - galss水玻璃water pump seal水泵护圈water extractor干燥器,湿度分析器water pollueion水污染

1. This water polo team is a strong one.
   这个水球队阵容很强。
2. Once you know the rules of water polo, you'll be able to play well.
   一旦你知道这些水球的规则你就能打好。