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
And don't forget your camera and film, Richard.
别忘了你的照相机和底片， Richard。
The doctor said I looked pale.
医生说我看起来很苍白。
At night, the children always do their homework.Then they go to bed.
晚上，孩子们总是做作业，然后去睡觉。