Pmf
abbr. probable maximum flood(ing) 可能最大血崩，可能性最大洪水
🗣️ 情景例句
Grandpa, can you come?
爷爷， 你能去吗？
Two ears to one tongue, therefore hear twice as much as you speak.
两只耳朵对一舌，故应多听而少说。
'Can I return these two tickets?' he asked.
“我可以退掉这两张票吗？”他问。