adverb平坦地
noun公寓,套房;单元房
adjective平的,平坦的;(轮胎)瘪了的,撒了气的
adverbwith no parts that are higher or lower than the rest
nouna group of rooms for living in, usually on one floor of a house or big building
adjectivesmooth, with no parts that are higher or lower than the rest
adjectiveA tyre that is flat does not have enough air inside it.