Tribolite
矿物磨料
🗣️ 情景例句
Where can I pick up my package?
我在那儿领取包裹？
These two students drank a lot of coffee.
这两个学生喝了许多咖啡。
The sides of the dish were so smooth that it was almost impossible to attach hawsers and chains to the rim without damaging it.
盘子四边十分光滑，要在盘边拴上绳索或链条而同时又不损坏它是很难办到的。