Selenocosalite
硒铜辉铅铋矿
🗣️ 情景例句
May I ... may I help?
我能……我能帮上忙吗？
To lift
击起
When I asked him what he was doing, he smiled guiltily and then put the parcel on the desk.
当我问他正干什么时，他内疚地笑了，然后把那个大包拿到了桌上。