Rittingerite
砷硒银矿
🗣️ 情景例句
At today's exercise class...
今天上健身课的时候……
Is it true that manufacturing of automobiles is a major industry?
汽车生产是主要工业是真的吗？
He became a supporter of the poorest group in society, who did the lowest-paid jobs.
他成为社会中那些从事工资最低的工作的，最穷种姓的支持者。