Objective Studying on the tear film break up time of middle old aged folks to find out the affecting factors related to the stability of tear film of eyes.
目的调查目前中老年人泪膜破裂时间的状况，了解对眼表面泪膜稳定性的相关因素。
In the middle of the bush sat a friendly-looking old woman in a most strange dress.
在灌木丛的正中央坐着一位很亲切的老太婆，她穿着一条非常奇怪的裙子。
Uttering a cry of joy, Heidi ran into the middle of the flock, greeting her old friends.
海蒂高兴地喊了一声，跑到羊群之中，向她的老朋友们问好。
There was an old dog in the middle of the street who seemed lost.
街中央有只老狗，它好像迷路了。
Both he and his wife are middle school teachers while their 6-year-old son is a pupil.
他和妻子是中学教师，而他们6岁的儿子是小学生。
The old photo often reminds me of my happy time in middle school.
这张老照片经常使我想起我在中学的快乐时光。
Gathered together, the old, the middle-aged and the young studied side by side and encouraged each other.
老、中、青济济一堂，共同学习，相互激励。
Every time I see her she's got a new middle name for herself... Old Phoebe said something then, but I couldn't hear her.
每次我见她，她都给自己取一个新的中间名……菲比丫头说了些话，不过我听不见。
She pushed the door open and went into the room. There, in the middle, sat an old woman working at a spinning wheel. Behind her was an enormous bed.
她推开门进入房间，在房间中间，一个老女人在用纺车做事情，她后面有一个大床。
Three years old, standing in the sun, in the middle of a field that his family doesn't own.
岁大，站在太阳底下，在一片不属于他们家的田野当中站着。
Berlin, says Franziska Eichstädt-Bohlig, a Green member of its Senate, is really three cities: the old east, the old west and the new middle.
德国参议员Franziska Eichstädt-Bohlig说柏林事实上是三个城市：老的东部，老的西部和新的中间区域。
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)。
I saw an old man on crutches, middle-aged office workers and bands of teenagers.
我看到一位拄着拐杖的老人，一些中年上班族，还有一群青少年。
"Everyone wants free time to do the things they want to do, young, middle-aged or old," said Richard Morin, of the Pew Social &Demographic Trends Project, which conducted the survey.
开展该调查的“皮尤社会与人口趋势项目”的理查德•莫林说：“无论青年、中年还是老年人，每个人都希望有空余时间去做自己想做的事情。”
Married people resist control from their spouses; old people resist control from their middle-aged children; children of all ages resist control from their parents.
已婚夫妇抵触配偶的控制，老年人抵触中年儿女的控制，各个年龄段的孩子都抵制家长的控制。
Married people resist control from their spouses;old people resist control from their middle-aged children;children of all ages resist control from their parents.
已婚夫妇抵触配偶的控制，老年人抵触中年儿女的控制，各个年龄段的孩子都抵制家长的控制。
Even finding a cast that could sing, dance and act - and were old enough to play middle-aged characters - was a challenge this time, says Craymer.
更进一步，还要寻找能唱能跳能演的演员，并且年纪足够饰演中年角色。这些在当下都还具有挑战性，克莱默说。
In my town, on the edge of the gas patch, the old middle school still hosts safety training for coal miners.
在我居住的地方，天然气厂旁边的那所老中学还在给矿工进行安全培训。
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。
The word cement seems to have come into Middle English from Old French and ultimately from Latin.
水泥这个词似乎最早是由拉丁语演变为古法语，随后进入中世纪英语。
Singers who appeal to the middle-aged and old, such as Hideaki Tokunaga and Junko Akimoto, rule the charts.
对中老年人很有吸引力的歌星如德永英明和秋元顺子主导了音乐排行榜。
The growing clout of middle-aged and old listeners extends beyond recorded music.
中老年听众所造成的影响逐渐扩大，已经不局限在录制音乐上。
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。
When it comes to computers, any hardware over two years old is considered middle-aged and anything over five years is considered ancient.
谈到计算机，任何两年前的硬件都已经被当成是中世纪古董，而超过五年就已是远古化石了。
In the middle of the village lived an old shoemaker's wife; she sat down and made, as well as she could, a pair of little shoes out of some old pieces of red cloth.
在村子的正中央住着一个年老的女鞋匠。她用旧红布匹，坐下来尽她最大的努力缝出了一双小鞋。
The old man looked up and saw a middle-aged woman sitting on a bench in the garden who threw the tissue.
老人抬眼望去，是坐在花园边一张长椅上的一个中年妇女扔过来的。
In the middle of our lunch one day, the old man rushed into the room, shaking with anger.
一天，我们正吃着午饭，那个老头冲进屋里，气得浑身发抖。
They each stand in a different corner of a football field in the middle of which is the old man who is crouching.
他们分别站在球场的四周，中间是一个蜷缩的老人。
Trials began when mice were about 600 days old — well into middle age, at a stage roughly equivalent to 60-year-old humans.
当小鼠成长到600天的时候，科学家开始对其进行试验，这个阶段相当于人类的60岁。
As overlooked middle child Sue Heck on ABC's The Middle, 18-year-old Eden Sher has caught our attention, making us want to learn more about the girl behind the braces.
作为美国广播公司上映的《中间之道》剧中的第二个孩子苏·赫克的扮演者，18岁的艾登·谢尔已经引起了我们的注意，使我们想更多的了解戴牙套女孩子的背后。
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