应声虫 yīng shēng chóng

DEFINITIONS

  1. yes-man
  2. opinionless person

CHARACTERS

应 yīng
HSK 3
should, ought to, must
声 shēng
HSK 3
sound, voice, noise; tone; music
虫 chóng
HSK 5
insects, worms; KangXi radical 142