Gmac
abbr. gaining major air-command 获得（或授予）主要的空军指挥权
🗣️ 情景例句
I have to cram all night for tomorrow's exams.
为了明天的考试，我得熬夜临阵磨枪。
Yes,I am.
是的，我是。
You've got lots of old buildings in your country.
你们国家有许多古老的建筑物。