Erh
abbr. 平衡相对湿度（equilibrium relative humidity）
🗣️ 情景例句
Are we too late for our dinner reservation?
我们会不会错过晚餐订位时间
Very please to meet you.
见到您很高兴。
I hope you can come to my party next Sunday.
我希望你能参加我下星期天的聚会。