柯林斯词典floodgate /ˈflʌdˌɡeɪt/ 1. N a gate in a sluice that is used to control the flow of water 节制闸门 (Also called head gate, water gate)→see also sluicegate 返回 floodgate剑桥词典a gate that can be opened or closed to control a flow of water 防洪闸门；水闸 习语open the floodgates 返回 floodgate