Erh
abbr. 平衡相对湿度（equilibrium relative humidity）
🗣️ 情景例句
Do you have any openings for a typist?
你这里缺打字员吗？
What time are you going?
你什么时候走？
The children were leaving school on Tuesday when they saw a truck.
星期二，孩子们正放学回家，这时，他们看见一辆卡车。