弹钢琴

Traditional (Taiwan): 彈鋼琴

tángāngqín ㄊㄢˊ ㄍㄤ ㄑㄧㄣˊ

    • to play the piano

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
play the piano
Meaning
To work on several tasks in coordination around the main priority, like using all ten fingers rather than one. Approving, used in official or work contexts.

Sources