原文 Original text
繁體 Traditional
Reader's edition
此間有戰場 Here Is Ground For Fighting
那二怪攙著老魔，徑至門外，叫道：「孫行者，好漢出來，此間有戰場，好鬥。」那二怪搀着老魔，径至门外，叫道：「孙行者，好汉出来，此间有战场，好斗。」
逐句解 Line by line
那二怪攙著老魔，徑至門外，叫道：「孫行者，好漢出來，此間有戰場，好鬥。」
那二怪搀着老魔，径至门外，叫道：「孙行者，好汉出来，此间有战场，好斗。」
The second fiend supported the old one out to the gate, and they called: "Sun Wukong! Come out if you are a man. Here is ground for fighting, and good fighting it will be."
著 is again zhe, an action under way — holding him up as they walk. 場 reads chǎng here, since 戰場 is a real place, a field, and not a count of events.
One detail undercuts the whole challenge: the old demon has to be held upright by his brother to issue it. His teeth are broken, he has been dragged about by his own insides for a chapter and a half, and he is being walked to the gate like a man being helped out of a pub. The invitation to come out and fight is being delivered by someone who can barely stand.
The word for the ground they are offering is the ordinary one for a battlefield, a place rather than an occasion, and the choice is worth marking because earlier chapters read the same character differently. When it counts bouts — one round of good fighting — it takes another sound entirely. Here it is simply a field, and the demons want Wukong standing in the middle of it.