缘木求鱼

缘木求鱼 [yuán mù qiú yú]

1. ■ climb trees to catch [look for] fish -- cannot get blood from a stone; catch fish in a tree -- a useless search; do the impossible; do things by the wrong method; milk the bull; resort to a fruitless approach; seek roses in December; toil with no gain; try to do the impossible; wring [get] water from a flint