Vanadinite
n. [礦]釩鉛礦
??? 情景例句
I wasn't good at it, and I didn't like studying it.
我不精于此道， 也不愛去學它。
My uncle was a pilot with the airlines.He just retired.
我的叔叔是航空公司的一名飛行員，他剛退休了。
I beg your pardon?
請您再說一遍（我沒有聽清）。