英语语法分析

Sludge AD abrasives are removed with the oil when drained.

沉积物和磨粒在形成时就由机油过滤掉。

Because of toothpaste containing abrasives, detergency is very strong.

因为牙膏中含有研磨剂，去污力十分强。

Sometimes they contain rough abrasives that cause increased abrasion of the teeth at the gum line.

这些牙膏或牙粉含有粗槽的磨牙剂，使用龈线上的牙齿的磨损增加。