“无底洞”的拼音？

“无底洞”的英语可以翻译为：arathrum，abime，a bottomless pit (that can never be filled)，insatible desires，abyss...

他吃起东西来肚子像个无底洞。He's a bottomless pit as far as food is concerned.战争把许多青年男子吞进了它的无底洞.The war swallowed up many young men into its maw.嘴是无底洞.If it were not for the belly , the back might wear gold....