Macgovernite
粒砷锰锌矿
🗣️ 情景例句
Are we scheduled to leave on time?
飞机准时起飞吗？
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。
Don't you think it necessary to have a close study of the contract to avoid anything missing?
你不觉得应该仔细检查一下合同，以免遗漏什么吗？