Beryllocene
二茂铍
🗣️ 情景例句
I would like a room on the 5th floor.
我想在五楼要一个房间。
What kind of climate do you have?Is it mild?
你们那里的天气怎么样？它是不冷不热的吗？
It's supposed to start at 6:30 sharp, but I doubt it will.
应该是六点半整的，但是我觉得够呛。