xiā​māo​pèng​dào​sǐ​lǎo​shǔ

a stroke of luck

瞎猫碰到死老鼠 瞎貓碰到死老鼠 xiā​māo​pèng​dào​sǐ​lǎo​shǔ
a stroke of luck
(xiehouyu) describes achieving something by pure chance or luck rather than skill; literally a blind cat coming across a dead mouse

Cross-References

Same as