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 never bother servicing my own car, it's too much trouble.
我从来都不自己修车的，麻烦死了。
Hear all parties.
兼听则明。
The 100-metre race.
100米赛跑