permanent stain造句怎么写

If you happen to spill some gas or oil on the floor, newspaper will help absorb the spill and can prevent a permanent stain on concrete .

There is nothing more insidious than a collective guilt passed down from generation to generation, dyeing a people with a kind of permanent stain.

If you happen to spill some gas or oil on the floor, newspaper will help absorb the spill and can prevent a permanent stain on concrete or a soft spot in your asphalt drive.