Pyrobelonite
钒锰铅矿
🗣️ 情景例句
Well, here's the bottle opener, and here's the flashlight.
哦 ，这是开瓶器 ，这是手电筒。
Long time no see.
好久不见。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。