关于birthrate的百科

• birthrate造句怎么写

• Thenewbirthratehasdecreasedfromlastyear's.Thebirthrateinthecityhasbeendecreasing.Thebirthrateinthiscityisincreasingataratioof0.6toathousandeveryyear.Withanincreasedlifeexpectancyandadecreasedbirthrateduetothefamilyplanningpolicy,Althoughthethrowingo...
• 2018-06-2418356