原文 Original text
繁體 Traditional
Reader's edition
就似行軍 Just Like Marching an Army
我們既保師父，走過險峻山路，就似行軍的一般。」八戒道：「行軍便怎的？」我们既保师父，走过险峻山路，就似行军的一般。」八戒道：「行军便怎的？」
逐句解 Line by line
我們既保師父，走過險峻山路，就似行軍的一般。」
我们既保师父，走过险峻山路，就似行军的一般。」
Since we are guarding the master through steep mountain roads, it is just like marching an army."
The pilgrimage recast as a military operation, which will let him hand out a rank in a moment. 險峻 is steep and dangerous, the same word the mountain rhapsody ended on.
八戒道：「行軍便怎的？」
八戒道：「行军便怎的？」
Bajie said, "And what if it is like marching an army?"
行 is xíng, to march. That reading is worth stating because the mechanical pass gets it wrong here: the speech tag ends and the quotation begins between 道 and this character, and a reader who ignores the break sees the compound 道行, spiritual attainment, which is not in this chapter at all.
Bajie's question is flat and slightly suspicious, and he is right to be. The last time his brother offered him a good turn it ended with forty imps.
The military framing is doing real work. It turns walking in front into a post, and a post is something you can be honoured with rather than sent to.