英语语法分析

At last, the slag (残渣) from burning masks can be recycled to make bricks (砖块) or fill the roads.

最后，燃烧的口罩残渣可以回收用以制作砖块或填充道路。

The ethnic slag aside, he was right.

摒除种族的偏见，他是对的。

The cost, too, fell, because slag is free, whereas clay costs money.

因为渣是免费的而粘土需要钱，所以成本也下降了。