Tersulfide
三硫化物
🗣️ 情景例句
They have an opening.
他们有一个空房间。
No matter what comes up, don't sound nervous.
不论发生什么事情，你也不要显得紧张。
When the fire had at last been put out, the forest authorities ordered several tons of a special type of grass-seed which would grow quickly.
在大火最后被扑灭后，森林管理当局订购了好几吨一种生长迅速的特殊类型的草籽。