理腸復完 Setting the Guts to Rights
行者搖搖擺擺，徑至殺場。將身靠著大樁，解開衣帶，露出肚腹。那劊子手將一條繩套在他膊項上，一條繩紮住他腿足，把一口牛耳短刀幌一幌，著肚皮下一割，搠個窟窿。這行者雙手爬開肚腹，拿出腸臟來，一條條理夠多時，依然安在裡面，照舊盤曲。捻著肚皮，吹口仙氣，叫：「長！」依然長合。行者摇摇摆摆，径至杀场。将身靠着大桩，解开衣带，露出肚腹。那刽子手将一条绳套在他膊项上，一条绳扎住他腿足，把一口牛耳短刀幌一幌，着肚皮下一割，搠个窟窿。这行者双手爬开肚腹，拿出肠脏来，一条条理够多时，依然安在里面，照旧盘曲。捻着肚皮，吹口仙气，叫：「长！」依然长合。
逐句解 Line by line
The Pilgrim, swaggering along, went straight to the killing-ground.
搖搖擺擺 — swaggering, rolling from side to side. He walks to his own disembowelling the way a man walks into a tavern. 殺場: 場 = chǎng.
He set his body against the great stake, loosed his belt, and bared his belly.
將身靠著大樁 — set his body against the great stake, with 將 = jiāng and 著 = zhe holding the leaning in place. 解開衣帶: 解 = jiě, to loose or untie. He undresses for it himself; nobody has to hold him.
That executioner looped one rope over his neck and shoulder, tied another about his legs and feet, gave an ox-ear dagger a flash, and against the belly-skin gave one slash, stabbing a gaping hole.
A 牛耳短刀 is an ox-ear dagger — a short broad blade named for the shape of it, and the tool for this kind of work. The reading to catch is 著 in 著肚皮下一割: zháo, in the old vernacular sense of laying a thing against its target, so the blade is set to the skin and one cut made. 搠個窟窿 is to stab a hole in something. 將一條繩: 將 = jiāng; 那劊子手: 那 = nà, 子 = zi.
This Pilgrim, with both hands, opened up his belly, drew out the bowels and viscera, sorted them strand by strand a good long while, and then, just as before, settled them back inside, coiled as of old.
And then the pace changes completely. 一條條理夠多時 — he sorts them strand by strand for a good long while, and puts them back 照舊盤曲, coiled just as they were. The comedy is entirely in the unhurriedness of it: a self-disembowelling carried out with the patience of somebody untangling wool. 腸臟 is bowels and viscera.
He pinched the belly-skin, blew a breath of immortal air, and cried: "Grow!"
捻著肚皮, pinch the belly-skin together (著 = zhe), one breath of immortal air, and the same one-word command as at the block: 長, zhǎng — grow.
And just as before, it grew shut.
依然長合 — and just as before, it grew shut. 長 = zhǎng. Four characters to undo what took a paragraph to do.
The second ordeal repeats the first in its calm. Wukong props himself against the stake, unties his own belt, bares his belly, takes one cut from the ox-ear dagger, then opens himself with both hands, lifts the organs out, and sorts them 一條條, strand by strand, 夠多時, for a good long while, before settling them back 照舊盤曲, coiled just as they were. The joke is entirely in the pace. Nothing about the description is hurried, and a self-disembowelling performed with the patience of somebody untangling wool is far funnier than one performed heroically.
It also lays down the template Deer-Power will copy and fail at: the same stake, the same blade, the same drawing-out of the guts. The difference is where the control sits. Wukong works from inside; the deer will have his organs taken out of the air by a hawk, and no shout of 長 will help him. The chapter's structure is relentlessly paired, each ordeal a matched set in which real invulnerability is set beside the shallow kind.