Ocm
abbr. Oracle认证大师（Oracle Certified Master, Oracle为数据库名）
🗣️ 情景例句
It's no big deal.
这没有什么。
To learn about words in dictionary
用词典学习单词
Sure, just drop in my office some time and pick them up.
没问题，什么时候到我办公室来拿都可以。