Omc
abbr. 操作维护中心（Operation and Maintenance Center）
🗣️ 情景例句
Goodbye, it was a pleasure meeting you.
再见， 和你见面很高兴。
If Grade A is not available, Grade B will do.
如果一等品无货，二等品也可以。
What did you have?
你们吃了什么？