雅思写作之老龄化问题

雅思写作|老龄化问题

irth rate=the number of births that happens during a period of time in a particular place出生率

The birth rate in England has fallen to an all-time low.英格兰的婴儿出生率降到了历史最 低点。

population ageing=the increase in the number and proportion of old people in society人口老龄化

Population ageing has emerged in many developing countries as well.人口老龄化在许多发展中国家中是一个普遍的问题。

manipulate human genes操控人类基因

control the aging process控制衰老的过程