一呼百应 yī hū bǎi yìng

DEFINITIONS

  1. a hundred answers to a single call (idiom)
  2. to respond en masse

CHARACTERS

一 yī
HSK 1
one; a, an; alone
呼 hū
HSK 4
breathe sigh, exhale; call, shout
百 bǎi
HSK 2
one hundred; numerous, many
应 yìng
HSK 3
should, ought to, must