扬长避短
make the best use of (or maximize)the favorable conditions and avoid the unfavorable; foster strengths and circumvent weaknesses;give play to one’s strong points and avoid one’s shortcomings; avoid one’s weaknesses while exploiting one’s strengths
扬长避短yánɡ chánɡ bì duǎn
发扬优点，避开缺点。adopt sb.’s good points and avoid his short-comings, foster strength and circumventing weaknesses, give play to one’s strong points and avoid one’s shortcomings