例句與造句

1. The downside of rounded sands is that their shape prohibits them from forming a firm seedbed.
2. Angular sands achieve this firmness as they are able to settle and form together more efficiently than rounded sands.
3. One main type being rounded sands, that provide efficient filtration for water and other aqueous solutions, enabling the turf to take more rainfall.
4. It's difficult to find rounded sand in a sentence. 用rounded sand造句挺難的