beaver-type timber dam

例句：

1. 1.The beaver-type timber dam is a popular choice for small streams.
   这种木筏坝是小溪的热门选择。
2. 2.The construction of the beaver-type timber dam has been completed.
   木筏坝的建设已经完成。
3. 3. The beaver-type timber dam is a safe and reliable solution for flood control.
   木筏坝是一种安全可靠的洪水控制解决方案。