Cete
n. 一群獾
🗣️ 情景例句
What do you do for a living?
你以什么为生？
Everyone wins.
两全其美。
It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951;
这个频率是空间氢原子释放的自然频率，是在1951年被人类发现的。