know-how

n. /ˈnoʊ haʊ/ C1

专业技能；诀窍

Practical knowledge and skill needed to do something well.

仙境例句

Alice had no know-how with puppies, so she held out a stick and hoped for the best.

爱丽丝一点儿也不懂怎么对付小狗，只好伸出一根树枝，盼着别出事。