柯林斯詞典floodgate /?fl?d?ɡe?t/ 1. N a gate in a sluice that is used to control the flow of water 節(jié)制閘門 (Also called head gate, water gate)→see also sluicegate 返回 floodgate劍橋詞典a gate that can be opened or closed to control a flow of water 防洪閘門；水閘 習語open the floodgates 返回 floodgate