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The birthrate is on the decrease.人口出生率正在下降.The birthrate is on the decline.出生率在下降.The birthrate in the city has been decreasing.该市的出生率一直持续下降....
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birthrate的音标：birthrate的英式发音音标为：['bɜ:θˌreɪt]birthrate的美式发音音标为：['bɜθˌreɪt]...
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birthrate的复数形式为：birthrates...