香獐餓虎 The Musk Deer And The Tiger
那白鶴見鳳是鳥王，諸禽不敢妄動，刷的一翅，淬下山崖，將身一變，變作一隻香獐，乜乜些些，在崖前吃草。行者認得，也就落下翅來，變作一隻餓虎，剪尾跑蹄，要來趕獐作食。那白鹤见凤是鸟王，诸禽不敢妄动，刷的一翅，淬下山崖，将身一变，变作一只香獐，乜乜些些，在崖前吃草。行者认得，也就落下翅来，变作一只饿虎，剪尾跑蹄，要来赶獐作食。
逐句解 Line by line
The white crane, seeing that the phoenix is king of birds and that no fowl dares stir against him, swept down with a beat of the wing, dropped below the cliff, changed his body and became a musk deer, grazing before the crag with a dull dawdling air.
The contest is decided here by protocol rather than by force: the phoenix is king of birds and none of the fowl dare move against him, so the Bull King leaves the air altogether. 乜乜些些 is a doubled vernacular phrase for a vacant, dawdling manner, and it is doing disguise work — a musk deer that looks witless is not a demon king. 將 is jiāng.
Pilgrim knew him, dropped his wings likewise, and became a hungry tiger, whipping his tail and pawing the ground, coming to run the deer down for food.
Two characters undo it: 認得, he knows him. 落 is luò, not the là of leaving something behind. 剪尾跑蹄 is the tiger gathering itself, tail whipping and paw scraping.
The aerial contest ends without a blow. 鳳是鳥王，諸禽不敢妄動 — the phoenix is king of birds, and no fowl dares move against him. The Bull King does not lose a fight; he concedes a hierarchy, and leaves the sky rather than test it.
What he does on the ground is craft rather than force. A musk deer grazing before a cliff with a 乜乜些些 air — vacant, dawdling, witless — is a disguise and not a transformation for combat. He is trying to stop being worth chasing.
It does not work, and the reason is two characters long: 認得. The Great Sage knows him. That is the faculty the passage before last established as his alone, and the chase continues because nobody has yet found a shape he cannot see through.