loose material

例句：

1. 1. The loose material in the bag was causing a problem.
   袋子里的松散物料导致了一个问题。
2. 2. The engineer used a compressor to loosen the soil.
   工程师使用一台压缩机来松动土壤。
3. 3.The loose material could be easily scattered by the wind.
   松散的材料很容易被风吹散。