Hammarite
重硫铋铜铅矿
🗣️ 情景例句
We were exposed to the latest theories on child care.
我们接触过有关幻儿保育的最新理论。
In my opinion, the product must be priced under $ 300.
就我的意见来说，产品价格必须订在300美元以下。
My name's Ling Feng.
我叫凌峰。