He's a dab hand at cooking spaghetti.

他是煮意大利面条的高手。

《牛津词典》

She's really good at farm work.; She's a dab hand at farm work.

她农活干得好着呢。

《新英汉大辞典》

Jennifer: Just dab it all over your face and then take a look at the symbols that appear.

珍妮花：只要用这张面纸将脸整个按过一遍，然后看看会有什么符号浮现出来。

youdao

In addition to being a master of the provocative statement, Mr Giddins is a dab hand at the deft biographical sketch.

ECONOMIST: Jazz books