Tiemannite
n. [矿]硒汞矿
🗣️ 情景例句
I see under activities that
我注意到在 活动 项目中提到
If the ox falls,whet your knife.
牛一倒，快磨刀；人遭难，众人踩。
Once he had done this, he had been able to turn on the supply.
一旦他接上了接头，他就能够打开供气阀。