Divanadyl
二氧化钒根(四价根)
🗣️ 情景例句
I can see that you've done this before.
我发觉你曾干过此事。
To worry
烦恼，担心
as my wife and I discovered during a tour through the Balkans.
我与妻子在一次周游巴尔干半岛时对此深有体会。