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
I hope so.
希望没事。
Pain is forgotten where gain follows.
好了伤疤忘了痛。
Let me explain why I was late.
让我解释迟到的理由。