七十二副 Seventy Two Faces
我把舊嘴臉拿出來你看看，你卻莫怪。」公公道：「怎麼又有個嘴臉？」行者道：「我小和尚果有七十二副嘴臉哩。」我把旧嘴脸拿出来你看看，你却莫怪。」公公道：「怎么又有个嘴脸？」行者道：「我小和尚果有七十二副嘴脸哩。」
逐句解 Line by line
I will fetch out my old face for you to have a look at — only do not take it amiss."
舊嘴臉 is the old face, and 拿出來 treats it as an object to be produced from somewhere — a thing kept about the person, like a document. 你卻莫怪 is a warning dressed as a courtesy, and it is the only consideration the old man is going to get.
The old man said, "How can you have another face?"
The question is the reasonable one and it is the wrong one. He asks how a person can have a second face, which assumes the answer is at most two.
Pilgrim said, "I, the little monk, have seventy-two faces, as it happens."
七十二副 — seventy-two, and 副 is the measure word for a set or a suit, the one you use for a pair of spectacles or a deck of cards. The faces come as a set. Seventy-two is the count of his transformations throughout the book, and the number is not idle: it is the standard Daoist figure for the earthly transformations, matched against thirty-six heavenly ones.
The reveal is staged with perfect timing. Pilgrim asks permission, warns the old man not to be offended, and only then mentions in passing that there are seventy-two of these.
The measure word is the detail worth keeping. Faces here are counted the way you count a suit of clothes or a set of tools, which tells you exactly how Pilgrim thinks about identity. A face is equipment.
And the number is not decoration. Seventy-two earthly transformations against thirty-six heavenly ones is standard Daoist arithmetic, and the book gave Pilgrim the larger and lower set on purpose. He is a creature of the earth, and his repertoire says so.