✅ 同义词
🗣️ 情景例句
But I'm not so sure that I want to leave New York,
但我不能确定我真想离开纽约，
My cousin is a member of a flying club, He seem private flying.
我的表兄是一个飞行俱乐部成员，他似乎很喜欢飞行。
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。