dab hand

US /ˌdæb ˈhænd/

UK /ˌdæb ˈhænd/

高手, 能手, 行家

a person who is very skilled at a particular activity or craft

•

My grandmother is a real dab hand at baking cakes.

我奶奶真是个烘焙蛋糕的高手。

•

He's a dab hand with a paintbrush.

他是个用画笔的高手。