washstand drain valve

例句：

1. 1.The new sink drain valve is more efficient than the old one.
   新的水槽排水阀比旧的更高效。
2. 2. The plumber replaced the old washbasin drain valve with a new one.
   水管工用一个新的代替了旧的洗手台排水阀。
3. 3.The sink drain valve was clogged, causing water to back up.
   水槽排水阀堵塞了，导致水倒流。