Rco
abbr. remote control oscillator 遙控振蕩器; rendezvous compatible orbit 適于會合的軌道; representative calculating operation 典型的計算操作
??? 情景例句
What a downpour!
下得可真夠大的！
Lightly gain,quickly lost.
來得容易去得快；不義之財，理無久享。
Everybody on board was worried and we were curious to find out what had happened.
飛機上的人都很著急，大家都急于想知道究竟出了什么事。