Adelpholite
铌铁锰矿
🗣️ 情景例句
Young motorists all drive too fast.
年轻人的车都开得飞快。
Then, all of a sudden, it became cloudy and began to rain.
可是突然天就变了，乌云密布并下起雨来。
However, Susan has not really made up her mind yet.
然而，苏珊却还没有决定。