柯林斯詞典water cannon (water cannon) 1. N-COUNT A water cannon is a machine that shoots out a large, powerful stream of water. It is used by police to break up crowds of people who are protesting or fighting. (警察用於敺散人群的)水砲 返回 water cannon劍橋詞典a device that sends out a powerful stream of water and is used in order to make large groups of people move away （用於敺散人群的）高壓水砲 Police used water cannons to break up the demonstration . 警察用高壓水砲敺散示威人群。 返回 water cannon