怎么走半天也走不出去
“Why haven't we found the exit after so long?”
THE DIALOGUE REEL
我记得这个地方就是路口了呀
“I remember there's a junction here.”
怎么走 半天 也 走不出去
“Why haven't we found the exit after so long?”
咱们好像真迷路了
“I think we are really lost.”
“Something is clearly wrong; I think we're totally lost and running in circles.”
Chinese frequently uses '半天' (literally 'half a day') not for literal measurement, but to express exasperation at wasted effort.
LEARNING CHUNKS & PARTICLES
walking for ages / walking for a long time
Hyperbolic colloquial chunk where '半天' emphasizes that an excessive amount of time has elapsed.
cannot find a way out / unable to exit by walking
Potential complement structure signifying an inability to accomplish the exit action.