瓮声瓮气
wèng​shēng​wèng​qì

in a muffled voice

  1. 瓮 wèng
    urn
    an earthen jar or pottery container with a narrow neck and wide belly, used for holding water, wine, or food
  2. 声 聲 shēng noun
    sound
    sound; voice; noise; something that can be heard
  3. 瓮 wèng
    urn
    an earthen jar or pottery container with a narrow neck and wide belly, used for holding water, wine, or food
  4. 气 氣 qì noun
    manner
    style; manner; air; habit; a person's demeanor or attitude