Sarcinite
红砷锰矿
🗣️ 情景例句
No. Isn't it wonderful?
不， 这不是很美妙吗？
Are you clear in your own mind what you ought to do.
你自己是否清楚该做什么？
Look at his big teeth. Isn't he bigger than you?
瞧他的大牙齿。他的块头不是比你大吗？