Keyes
n. 凯斯（姓氏）
🗣️ 情景例句
He was more than helpful.
他不仅仅是帮忙。
It's not gonna work.
行不通的啦！
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。