Sibynophis
剑蛇属
🗣️ 情景例句
Grandma's pearls!
祖母的珍珠项！
One cannot eat one's cake and have it.
事难两全其美。
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。