飞轮
fēi​lún

flywheel

fēi​lún flywheel · freewheel
  1. 飞 飛 fēi verb
    to fly
    to fly or move through the air; to hover or flutter
  2. 轮 輪 lún noun
    wheel
    wheel; circular part in a machine or vehicle that rotates; disk or ring

fēi​lún fast-moving wheels
  1. 飞 飛 fēi verbadverb
    swiftly
    to move at high speed
  2. 轮 輪 lún noun
    wheel
    wheel; circular part in a machine or vehicle that rotates; disk or ring

fēi​lún sun
  1. 飞 飛 fēi verb
    to fly
    to fly or move through the air; to hover or flutter
  2. 轮 輪 lún nounnumeral
    [round object]
    classifier for big round objects like the sun or moon