災殃鑄就 Cast Out Of Pure Calamity
惱得這行者跌腳搥胸，放聲高叫道：「師父啊，你是個晦氣轉成的唐三藏，災殃鑄就的取經僧。噫！這條路且是走熟了，如何不在？卻教老孫那裡尋找也？」恼得这行者跌脚搥胸，放声高叫道：「师父啊，你是个晦气转成的唐三藏，灾殃铸就的取经僧。噫！这条路且是走熟了，如何不在？却教老孙那里寻找也？」
逐句解 Line by line
It so exasperated Pilgrim that he stamped and beat his breast, and cried out at the top of his voice, "Master! You are a Tang Tripitaka turned out of sheer bad luck, a scripture-seeking monk cast out of pure calamity.
得 is de, the toneless join between a feeling and how far it went — vexed, and vexed to the point of stamping. Then the two matched insults: 晦氣轉成, spun out of ill fortune, and 災殃鑄就, cast out of calamity as metal is cast in a mould. 鑄 is a foundry word, and using it of a person is the sort of extravagance Pilgrim reaches for when he is upset rather than angry.
Ai!
噫 is a sigh of dismay, and it stands alone as a whole sentence. The novel spells its interjections carefully and this is the mournful one.
I know this road well enough by now — how is it you are not here?
走熟 is to have walked something until it is familiar. He is complaining that his expertise has stopped working, which is the real injury.
Where does that leave old Monkey to go looking?"
那 is nǎ, the questioning one — where. 教 is jiào, to make somebody do a thing, so the line reads literally where does it make old Sun search. 老孫 is his standing way of referring to himself, and the old is a familiar boast rather than a statement of age.
The outburst is aimed at the master and is really aimed at the cave. Pilgrim cannot shout at a hundred and seventy kilometres of tunnel, so he shouts at the man who is lost in it.
The two insults are built as a matched pair and both make Tripitaka a manufactured object — spun out of ill luck, cast out of disaster. It is abuse, and it is also, in the novel's own theology, very nearly a statement of fact.