Penfieldite
六方氯铅矿
🗣️ 情景例句
It's seventy-five cents for adults and thirty cents for children under twelve.
大人75美分，12岁以下的小孩30分。
Cetainly.You're absolutely right about that.
当然，关于那你是绝对正确的
Was that the 21st?
21号吗？