Some survive just 10 million years (the Sun is 4.6 billion years old and just reaching middle-age).
其中的一些仅仅存在了一千万年(太阳已经存在了46亿年，而且还仅仅步入中年)。
And much to their partner's annoyance, many women hang on old shoes, building up a sizeable collection by middle age, even if many go unworn most of the time.
而让她们的伴侣苦恼的是，女人们总是不扔旧的鞋子，这样到了中年的时候就积攒了一大堆鞋，即便有的从来都没穿过。
The findings contradict the long established belief that the amount of sleep we need falls as we approach middle and old age.
这项研究反驳了长期以来的观点，即随着年龄的增长，我们需要的睡眠时间会变短。
In simple terms, the young and middle-aged save for old age by buying assets, often with borrowed money; the old sell them to pay for retirement.
简单的说，年轻人和中年人购买资产为了老了以后的日子，此过程常常涉及贷款；而老人则常常出售资产用来支付退休后的开销。
Since chronic disease among the poor is not the preserve of old age, another part of the explanation for its increasing importance must lie in the harmful things middle-aged folk do.
既然穷人中慢性病并不限于老年人，慢性病重要性增加的另外一个解析可归因于中年人养成的有害习惯。
Like a person in middle age, the UnitedStates now has to worry not only about its own aging, but also about how toprovide for other family members who are becoming too old to fend forthemselves.
美国就像一个中年人一样，现在不仅要担心自己衰老的问题，还需要帮助老得没法自力更生的其他家庭成员。
Youth is the time of getting, middle age of improving, and old age of spending.
青年是收获的阶段，中年是提升的阶段，老年是消耗的阶段。
Those in the middle fair well for a time and perhaps into middle and old age, when then they become the bottom of the chi barrel and are consumed unto death.
那些暂时处于中间状态的人也许会进入中老年，之后当他们到气桶的最底部的时候便会被消耗至死。
By the time they were 390 days old (middle age for rats), 80% of the timid rats had developed mammary cancer, compared with 38% of the bolder rats.
当它们390天(即大鼠中年期时)，80%胆小鼠发生了乳腺癌，与之对比的凶猛鼠发生率为38%。
I examine man in the same way, it is more difficult for an unambitious young man to be ambitious in his middle age or old age.
我看人也是一样，一个人在年轻的时候没有志气，中年或晚年就更难有志气了。
The team found staggering differences in gene expression between juvenile 3-month-old mice and 16-month-old mice (equivalent to late middle age in humans).
小组发现，处于3个月大的幼年期小鼠和16个月大相当于中老年的小鼠间，有着难以置信的基因表达差异。
Conclusion: The morbidity of sarcoidosis increases in middle-old age patients.
结论：结节病中老年发病率较高。
The gap between the Old Stone Age and the New Stone Age once supposed to be a real hiatus, is being filled by a Middle Stone Age.
旧石器时代和新石器时代之间的间隔曾经被认为是个一个真正的间隔，现在被中时期时代所填补。
An extinct species or race of human beings, Homo neanderthalensis, living during the late Pleistocene Age in the Old World and associated with Middle Paleolithic tools.
尼安德特人：已灭绝的人类类型或种族尼安德特人，生存于太古时代更新世的晚期，与旧石器时代的工具有联系。
Moreover, those colors are like the lives of the women of Tachuan: the lively green represents their youth, the reserved red their middle age, and the plain gray and white their old age.
而这些色彩又仿佛塔川女人们的人生：活泼的绿是她们的少女时代，内敛的红是她们的中年时代，朴素的灰和白是她们的老年时代。
According to a study, the average Briton believes that youth ends at 35 and old age begins at 58. In between - all 23 years - is your middle age.
研究表明，普通英国民众都认为青年在35岁时就结束了，而老年开始于58岁，那么在此中间的这23年就是一个人的中年了。
According to a study, the average Briton believes that youth ends at 35 and old age begins at 58. In between - all 23 years - is your middle age.
一项研究表明，英国人普遍认为青年时期在35岁结束，老年时期从58岁开始。而这之间的23年则是人的中年时期。
The paper discussed the function of milk powder for middle and old age.
对中老年奶粉进行了润肠通便调理胃肠的保健功能研究。
Purpose on observe the effects of shuttlecock training to standing balance capacity of middle or old age womans single foot.
研究旨在观察踢毽锻炼对中老年女性单足站立平衡能力的影响。
Conclusions From 1989 to 1999, the diet structure of the Shanghai inhabitants in middle and old age changes greatly and becomes more reasonable.
结论从1989 ~ 1999年，上海市中老年人群的饮食结构有较大变化，饮食结构更趋于合理。
The young, the vigorous, the adaptable, the supple of limb, the alert of mind, are in demand …Middle age is old age.
年轻体壮、适应能力强、四肢灵活、头脑机敏的人很受欢迎……而中年人变成了老年人。
Third, we should speak about the problems of young people. How should people in old age, youth, and middle age conduct themselves?
第三、我们再讲青少年的这些问题，老年、少年、中年人应该怎么样？
Objective: To investigate the changes of hemorheology for old and middle-young-aged persons who were in different age phases.
目的：回顾探讨老年人的监测血液流变学指标变化与增龄的关系。
Infancy, childhood, youth, middle-aged, old age... the best of childhood.
幼年、童年、少年、中年、老年…最美好的是童年。
The starting point of my thesis is the analysis of age distribution on the urban poverty groups and I found that the poor has the inclination to concentrate on the middle age or old-age populations.
本文试图以城市贫困群体的年龄分布特征为切入点，指出贫困群体向中年积聚的现象。
Jaw length decreases significantly in comparisons between the young and middle age groups, whereas the decline in jaw height from the middle to old group was noteworthy.
中年组与青年组相比，下颌骨长度明显缩短，而老年组与中年组相比，颌骨高度下降并不明显。
Jaw length decreases significantly in comparisons between the young and middle age groups, whereas the decline in jaw height from the middle to old group was noteworthy.
中年组与青年组相比，下颌骨长度明显缩短，而老年组与中年组相比，颌骨高度下降并不明显。
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