鬥得過我 If You Can Beat Me
如若鬥得過我，饒你師徒，讓汝等成個正果；如若不能，將汝等打死，等我去見如來取經，果正中華也。」行者笑道：「妖精，不必海口，既要賭，快上來領棒。」那妖王喜孜孜，使狼牙棒抵住。如若斗得过我，饶你师徒，让汝等成个正果；如若不能，将汝等打死，等我去见如来取经，果正中华也。」行者笑道：「妖精，不必海口，既要赌，快上来领棒。」那妖王喜孜孜，使狼牙棒抵住。
逐句解 Line by line
"If you can beat me, I shall spare you and your master and let you all attain the true fruit;"
One character, two jobs, in the same breath. 得 is de here, the little link between a verb and its complement — beaten-past-me — where four segments back, in this same speech and about this same fruit, it was the dé that heads a claim of its own.
"and if you cannot, I shall beat the lot of you to death, and go myself to see the Tathāgata and fetch the scriptures, and take the true fruit in the Middle Land."
The source cuts the two conditions apart at a semicolon, and they are not matched: the first offers a life and a fruit in three clauses, the second takes a life and then runs on for two more clauses about what he will do afterwards. That extra half is the real proposal. 華 is huá in 中華.
Pilgrim laughed and said, "Demon, no need for big talk. If you want a wager, come up and take a taste of my cudgel."
海口 is a mouth as wide as the sea — big talk — and it is the whole of his answer to a speech of eighty characters. 領棒 is to receive a beating, phrased as though it were a favour being handed out over a counter.
The demon king, delighted, brought his wolf-tooth cudgel up to meet it.
喜孜孜 is a doubled adverb for open delight, and it is a strange note to close on: he has just been told he is boasting, and he is pleased. 抵住 is to hold something off by bracing against it.
The wager is the chapter's title in another form. He has the pilgrims trussed already and an iron cage promised for them; what he proposes now is a contest with the pilgrimage itself as the stake, and an offer to complete it in their place if he wins.
That is what makes him a different kind of obstacle. The demons of this journey usually want the master's flesh. This one wants his errand. He has already built the monastery, taken the title and set out the assembly, and the only thing left to acquire is the appointment.
Pilgrim's reply is four characters of dismissal and an invitation to be hit, and the demon is delighted by it. Both of them have wanted this fight since the shout outside the lines, and everything in between has been formality.