Jac
abbr. 飞机制造联合委员会（oint Aircraft Committee）
🗣️ 情景例句
May I ask who's calling?
请问你是谁？
So noisy!
吵死了！
This caused the construction of gigantic buildings where too large masses of human beings are crowded together.
这样就导致了许多摩天大厦拔地而起，大厦内众多的人挤在一起。