火車頭

Simplified: 火车头

huǒchētóu ㄏㄨㄛˇ ㄔㄜ ㄊㄡˊ

    • train engine
    • locomotive

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
locomotive; train engine
Meaning
A person or group that leads the way and pulls others along. Approving.

Sources