Erh
abbr. 平衡相对湿度（equilibrium relative humidity）
🗣️ 情景例句
Let's all just enjoy this wonderful place
让我们大家就来享受这个美妙的地方
Want of care does us more damage than want of knowledge.
粗心比无知更为有害。
You are John Smith, the engineer,aren't you?
你是工程师约翰。史密斯，对吗？