Ocs
abbr. （美国）候补军官学校（Officer Candidate School）；超速控制系统；振荡彩色顺序
🗣️ 情景例句
That remains to be seen.
那还要看看。
It's been cloudy all morning.
整个早上多云。
How long are you planning to stay over here?
你打算在这里呆多久？