Sonim
(=solid nonmetallic impurity) 固体非金属杂物, 夹灰, 夹砂
🗣️ 情景例句
We have 5 international patents which we are ready to sell.
我们有五项国际专利可以出售。
A man without a friend is only half a man.
无友的人只能算半个人。
OK, listen carefully, please.
好，请仔细听着。