短語(yǔ)詞組短語(yǔ)ZPG Zero Population Growth 人口零增長(zhǎng)zero population growth zpg 人口零值增長(zhǎng)theory of zero population growth 人口零增長(zhǎng)論theory of zero growth population 人口零度增長(zhǎng)論population zero growth 人口零增長(zhǎng) 返回 zero population growth