clean lattice

例句：

1. 1. Please clean up the mess before leaving.
   离开前请把乱糟糟的地方收拾干净。
2. 2. The house needs a thorough cleaning after the party.
   派对结束后，这间房子需要彻底打扫一遍。
3. 3. She spent all day cleaning her room.
   她花了一整天的时间打扫自己的房间。