Chalazoidite
[地质]泥球, 凝灰球
🗣️ 情景例句
What happened?
怎么啦？
He always called me as my friend.
他总是以“我的朋友”称呼我。
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。