Cheechako
n. 新来的人,无经验的人
🗣️ 情景例句
Something important.
一件重要的事。
I had thought he knew the time of the meeting.
我原以为他知道开会时间。
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。