打先锋

Traditional (Taiwan): 打先鋒

dǎxiānfēng ㄉㄚˇ ㄒㄧㄢ ㄈㄥ

    • to take the lead
    • to act as the vanguard

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
serve as the vanguard
Meaning
To go first, as the advance force on a march. Figuratively to take the lead in pushing forward. Approving.

Sources