Noun:

1. any of numerous aquatic beetles usually having a smooth oval body and flattened hind legs for swimming

Waterbergn.瓦特贝格(在纳米比亚；东经 17º13' 南纬 20º28')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-depth measurement水深测量water-vapour saturation水汽饱和water/thermal elements水热条件water-thermal treatment水热处理water and wastewater pipe给排水管线water circulatory economy水循环经济water - bearing stratum含水层water soluble natural gas水溶性天然气water content in chlorine氯中水质量分数water-transmission line输水管线