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
The newspapers don't come out till about ten o'clock.
报纸要差不多十点钟才出来。
I would have gone on the picnic if it hadn't rained.
如果没下雨，我就去野餐了。
No, we don't.
不，没有。