排水槽

例句：

1. 1. The rainwater is being carefully drained from the basement.
   雨水正在从地下室小心地排出。
2. 2. The gardener has to drain the pond every spring to prevent algae growth.
   园丁每年春天都必须排干池塘以防止藻类生长。
3. 3. The old house was built on a hill and needed to be drained before it could be renovated.
   这座旧房子建在山坡上，需要排空才能进行翻新。