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
Birds of a feather flock together.
物以类聚。
All is fair in war.
兵不厌诈。
Light the fire not so near the entrance that the wind will blow the fire out, and not so far in that the smoke will fill the cave, said my brother.
“不要太靠近洞口点火，风会把火吹灭的；也不要太靠里面，那样烟会充满山洞的，”我弟弟说，