curved weir

例句：

1. 1. The curved weiris designed to divert water from theriver.
   这个弯曲的堤坝设计用来将河水从河中引走。
2. 2. Theengineers had to make a decision onwhether to repair or replace the curvedweir.
   工程师们必须决定是修理还是更换这个弯曲的堤坝。
3. 3. Thecurved weir was an important partof the flood control system.
   这个弯曲的堤坝是防洪系统的重要组成部分。