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
You did a great job.
做得好。
When an opportunity is neglected, it never comes back to you.
机不可失，时不再来。
Fifteen minutes passed and then, at five to twelve, the clock stopped.
15分钟过去了，而就在11点55分时，大钟停了。