Chen Wei and Susan are walking down the street when they saw an accident.
陈伟和苏珊正沿着街道向前走,就在这时他们看到了一个交通事故。
There will be 400 million people over 65 by 2040 - a quarter of the population - estimates Chen Wei, an expert at Renmin University's population and Development Research Institute.
陈伟(音译)是人民大学人口与发展研究所的一位专家,他预计,至2040年,将有4亿年龄超过65岁的人口——总人口比例的四分之一。
Chen Wei and Susan are walking down the street when they see an accident.
陈伟和苏珊沿街而行时,看到一起事故。
Chen Wei and Susan are walking down the street when they see an accident.
陈伟和苏珊沿街而行时,看到一起事故。
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