Leucopyrite
低砷铁矿,斜方砷铁矿
🗣️ 情景例句
And coming home on Sunday?
星期日回来是吗？
Can I take a message?
要我传话吗？
Do you see that notice? It says No Camping -- in case you can't read!'
你们看到那个布告牌了吗？上面写着‘禁止野营’－－除非你们不识字！”