Uav
abbr. unavailability 无用度; 无效度; unmanned aerial vehicle 无人驾驶航空器; urban assault vehicle 城市中突击交通工具
🗣️ 情景例句
Front... knees up, knees up.
前踢， 膝盖抬高。
Not let the grass grow under one's feet.
不失时机。
We must decide which one to buy.
我们必须决定要买那一台。