🗣️ 情景例句
You've been like a second family to me.
你们就像我的第二个家一样。
If he doesn't, will you eat some?
如果他不，你会吃一些吗？
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。