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单词 weir
释义 weir/wiə/n. 1 a dam built across a river to raise the level of water upstream or regulate its flow 堰,拦河坝 2 an enclosure of stakes etc. set in a stream as a trap for fish 鱼梁(河中拦截游鱼的木桩围堰等) [Old English wer from werian ‘dam up’]
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