英德
有道
百度
谷歌
图片
维基
百科
开始衰老
senescence
- 在狗的成长过程中，尿液中肌酸衍生物会增多；之后，当狗开始衰老时，此衍生物就会减少。
As the dogs grew, the levels of creatine derivatives in their urine increased. - 老人学专家说，大多数人在18 - 30岁之间开始逐步丧失器官功能，也就是说他们开始衰老。
Geriatricians say most people begin losing organ function — which means they start aging — somewhere between 18 and 30. - 这不是因为身体在三十多岁时不可避免地会开始衰老，而是因为当女性达到三十来岁后，她们一般除了训练还有其它的责任。
This is not because bodies inevitably begin breaking down in their thirties, but because by the time women reach their thirties, they generally have responsibilities other than training for a sport.
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