空洞

空

ko̅ng

洞

dòng

cavity / empty / vacuous

Characters and words in 空洞

空

ko̅ng = ku + (e)ng1

empty / air / sky / in vain

空 = 工 + 穴 : Mnemonic symbol: an air conditioner

空 = 工 + 穴 : In front of the engine, Karl Koala found some very special cave paintings. Using steel beams he constructs a protective cover. He also installs air conditioning to make the best environment possible to preserve the cave paintings.

空

kòng = ku + (e)ng4

to empty / vacant / unoccupied / space / leisure / free time

洞

dòng = du + (e)ng4

cave / hole / zero (unambiguous spoken form when spelling out numbers) / CL:個|个[ge4]

洞 = 同 + 氵 : Doggy Dog (du) finds two twins (同) have fallen down the cave (洞) in the engine's bathroom ((e)ng4). He immediately begins to dig a tunnel to bring them a bottle of water (氵) until more help arrives.