breakthrough可数吗
breakthrough是可数名词,breakthroughs中文意思是,突破Butsuchtransitshavepavedthewayforwhatmightprovetobeoneofthemostvitalbreakthroughsinthecosmos—detectingEarth-sizedplanetsorbitingotherstars.但是这样的...
breakthrough是可数名词,breakthroughs中文意思是,突破Butsuchtransitshavepavedthewayforwhatmightprovetobeoneofthemostvitalbreakthroughsinthecosmos—detectingEarth-sizedplanetsorbitingotherstars.但是这样的...