English中文EspañolFrançais
foot hole /ˈfuːd ˈtʃeɪn/ n

中文：脚孔

中文 · 脚孔Español · orificio del pieFrançais · orifice du pied
Meaning：Opening through which air from the blower enters the pipe.
▶ Start interactive picture-tap lesson

Found in these illustrated scenes（2）

Organ Pipes Organ Pipes

‹ Browse all scenes