Marrite
硫砷银铅矿
🗣️ 情景例句
Hi. This is Robbie Stewart.
你好。我是Robbie Stewart。
Saying is one thing, and doing another.
说是一回事，做是另一回事。
Carbonated drinks are acidic, and slightly safer.
碳酸饮料是酸性的，就更安全一些。