Abrasives
n. （研）磨料, 磨蚀剂( abrasive的复数形式 ); <地质>磨蚀岩屑
🗣️ 情景例句
He's on leave now.
他现在在休假。
How about Mary? How long has she lived there?
玛丽怎么样？她在那儿住多久了？
After I had sat down, he said that business was very bad.
待我坐下后，他说生意非常不景气。