noun 下载 🔗分享 堰，水坝。 An adjustable dam placed across a river to regulate the flow of water downstream. Examples : "The engineer adjusted the height of the weir to ensure the farmers downstream received enough water for their crops. " 工程师调整了水坝的高度，以确保下游的农民能够获得足够的水来灌溉庄稼。 environment technology architecture utility geography structure device 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 堰，鱼梁 A fence placed across a river to catch fish. Examples : "The fishermen built a weir across the stream to trap the migrating salmon. " 渔民们在小溪上筑起一道鱼梁 (yú liáng)，用来拦截洄游的鲑鱼。 fish environment agriculture structure device 与AI对话词汇游戏阅读练习
