🗣️ 情景例句
Nets for tennis and badminton and so on.
有网球和羽毛球用的网等等。
I'm the worst pupil in my party.
我是我的聚会中最坏的学生。
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。