sweeping loam mould

例句：

1. 1.The house was swept clean before the guests arrived.
   客人到来之前，房子被打扫得干干净净。
2. 2. After the storm, the streets were swept and cleaned up.
   暴风雨过后，街道被清扫干净了。
3. 3. The sweeper is a robot that can sweep floors and clean carpets.
   扫帚机器人可以扫地和清洁地毯。