Erh
abbr. 平衡相对湿度（equilibrium relative humidity）
🗣️ 情景例句
Sorry, Richard. They don't have it.
对不起 Richard 他们那里没有。
That goes without saying.
不用你说我也知道。
Fortunately we found some that was still dry and carried it back to the cave.
幸好，我们找到了一些干木柴，并把木柴抱回岩洞。