Ucav
abbr. uninhabited combat air vehicle 非傳統戰斗航空器，非傳統戰斗機
??? 情景例句
I beg your pardon? Oh, I see.
你說什么？ 噢， 我明白了。
Why are you so sleepy?
你為什么這樣想睡？
I was doing some exercises on the high-and-low bars. When I landed, I fell forward and hurt myself. Someone was standing too close and I knocked into him and fell over onto my shoulder.
我當時在高低杠上練習。落地時向前摔倒受了傷。有人站的離我太近，我撞在他身上，跌了一跤，肩膀也受了傷。