Polyarsenite
红砷锰矿
🗣️ 情景例句
Not very good, I'm afraid, but I do play it a lot. Do you play, by any chance?
不怎么擅长，但我确实经常打。你有机会打球吗？
Why did you get home so late?
为什么你这么晚回家？
Is it your sister, Kate?
是你的妹妹，凯特？