英语 to go through; to penetrate; passed through, (same as 洞) a cave; a hole
【廣韻】徒紅切【集韻】徒東切，𠀤音同。通也。
又【集韻】杜孔切，音動。地通穴也。
疾流也。从水同聲。徒弄切
(洞)疾流也。此與辵部迵、馬部駧音義同。引伸爲洞達、爲洞壑。从水。同聲。徒弄切。九部。
