Marmag
氧化镁
🗣️ 情景例句
Where's the coffee?
咖啡在哪？
No possession, but use, is the only riches.
真正的财富不是占有，而是使用。
I've got a problem and as I don't know what to do I thought I'd write to you and ask for your advice.
我有一个问题，因为我不知道该怎么办。我想我最好写信给你，征求你的意见。