Haveyoueverwondered aboutthestars?Insomeways,starsarel...
问题详情： Haveyoueverwondered aboutthestars?Insomeways,starsarelikepeople.Theywereborn(出生).Theygrowoldandtheydie.Astarwasbornfromdust(灰尘)andgas(气体).Slowlythedustandgasmakeaball.Theballgetsveryh...