upturn in the birth rate出生率: birth rate; natality回升: rise again; pick up出生率: birth rate; natality◇出生率回升 upturn in the birth rate; 出生率降低 denatality粗出生率；毛出生率: crude birth rate; crudebirthrate差别出生率: differential birth rate下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:出生率回升，即可在微信中查询翻译
