Baritite
硫酸钡
🗣️ 情景例句
I 'm head over heels in love with you.
我为你神魂颠倒。
Archeologists still can only surmise as to the origin of Man.
考古学家们对于人类的起源依然无法推测。
Exploring really deep caves is not a task for the Sunday afternoon rambler.
探测非常深的洞穴不是那些在星期日下午漫步的人所能胜任的。