Mipcin
叶蝉散
🗣️ 情景例句
That's what I thought.
我也是这样想的。
We've got to get a sofa and a chair for the living room.
我们必须有一张沙发和椅子放在客厅。
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。