We live in a world in which almost 50% of the population is under 35.
我们生活在这样一个世界，几乎50%的人口的年龄不到35岁。
On World Bank data, around 40% of the population currently is under age 16.
从世界银行的数据来看，如今40%的人口年龄在16岁以下。
Over 50% of the world's population is under 30-years-old.
世界上超过50%的人口是在30岁以下。
The excessive population growth has been brought under effective control.
人口过快增长得到有效控制。
Young persons under twenty-five make up nearly half of the American population.
25岁以下的年轻人几乎占了美国人口的一半。
Young persons under twenty-five make up nearly half of the American population.
25岁以下的年轻人几乎占了美国人口的一半。
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