例句與用法

1. China has been experiencing the world ' s largest population flow , with the number of migrants doubled in the past 10 years , said wang guoqiang , deputy director of the commission
   國家人口和計劃生育委員會副主任王國慶說，中國正在經(jīng)歷著世界上最大規(guī)模的人口流動，流動人口在過去10年里增加了一倍。