Children show amarked increase in eveningness from around age 13 to late adolescence, and, on balance, more people under 30 are evening types.

大约在13岁到青春期后期，儿童中晚上类型的人明显增多。 总的来说，在30岁之前，晚上类型的人居多。

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At retirement, usually around age 30, some open their own training stables. Others slim down and embark on second careers.

相扑士一般在30岁退役，退役后，一些人会选择开他们自己的训练场，其他人会瘦身从事第二职业。

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Amongst Mrs Yang's generation, the 18-30 age group, and in the major cities, around one-third of all marriages fail.

杨太太这一代处于18 - 30岁这个年龄段，在全国各大城市，约三分之一的婚姻失败。

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The first confirmed fatality -- a woman around age 30 -- was reported around 7:30 a.m.

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Some of the young reformers speak admiringly of Estonia in 1992, when a new cabinet with an average age of around 30 zapped the country with useful reforms (before getting booted out at the polls).

ECONOMIST: Georgia

The general rule of thumb is that running backs experience a decline in productivity around the age of 30 due to the wear and tear they undergo.

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