water drain cock

例句：

1. 1. The plumber replaced the old water draincock with a new one.
   水管工用一个新的替换了旧的排水阀。
2. 2.The water drain cock was clogged and caused a flood in the basement.
   排水阀被堵塞了，导致地下室发生洪水。
3. 3. Toprevent future leaks, weneed to regularly check and clean thewater drain cock.
   为了预防未来的泄漏，我们需要定期检查和清洁排水阀。