Obm
abbr. 自创品牌（Orignal Brand Manufactuce）；[冶]底吹纯氧转炉炼钢（Oxygen bottom-blown Maxhuette）
🗣️ 情景例句
What a wonderful morning!
多么美好的早晨！
I do feel mad about making that stupid mistake.
我犯了那个愚蠢的错误确实懊恼不已。
Since the sea covers the greater part of the earth's surface,
既然海洋覆盖着地球的大部分表面，