Beryllia
氧化铍
🗣️ 情景例句
I've been wrestling
我一直左思右想
He that will eat the nut must first crack the shell.
欲所得，必先劳。
and in most cases the captive gradually quietens down and begins to accept its food.
在大多数情况下，刚捕来的象会慢慢静下来，接着开始吃食。