山穷水尽

山穷水尽 [shān qióng shuǐ jìn]

1. ■ the end of hills and rivers; be at [on] one's last shift [shifts]; be at [come to] the end of one's resources; be at [come to] the end of one's rope; come to a dead end; the condition that comes when one can do no more; where the mountains and the rivers end:

处于山穷水尽的地步 be on one's bones;

山穷水尽， 豁然开朗。 An apparently blind alley leads suddenly into an open space.