Aah
abbr.[军] Armored Artillery Howitzer, 装甲榴弹炮\\nabbr.[军] Advanced Attack Helicopter, 先进攻击直升机
🗣️ 情景例句
Do you know when the bus for the Summer Palace leave?
你知道到颐和园的车几点开吗？
Whatever.
无论做什么。
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。