你功课变差，我并不感到惊讶。
眼球晶状体的柔韧性随着年龄的增长而降低；因此普遍的情况是随着我们年纪变老，我们的视力就会变差。
The flexibility of the lens decreases with age; it is therefore common for our sight to worsen as we get older.
我们都听过一些关于视力变差的常见谣言。
We have all heard some of the common myths about how eyesight gets bad.
在我看来，经常使用手机阅读会导致视力变差。
In my opinion, reading on mobile phones too often is the cause of having poor eyesight.
例如，有些人认为戴眼镜也会慢慢使视力变差。
Some people believe that wearing glasses too soon weakens the eyes.
例如，有些人认为戴眼镜也会慢慢使视力变差。
For instance, some people believe that wearing glasses too soon weakens the eyes.
一些年轻粉丝可能过于关注他们的偶像，以至于成绩变差。
Some young fans might pay so much attention to their idols that their grades get worse.
他说：“戴这副眼镜的原因是多年的工作使他的眼睛变差了。”
"The reason for wearing these," he said, "was that his eyes had been weakened by the work of many years."
四分之一的学生报告说，在课上使用数码设备导致他们的成绩变差。
A quarter of students report that their use of digital devices during class causes their grades to suffer.
一些研究表明，使用互联网使我们的注意力持续时间变短、记忆力变差。
Some studies show Internet use is making our attention last shorter and our memory worse.
如果我的身体再次变差，只会让他失望——而且我的病情可能今晚就会会恶化。
It will only disappoint him if I get worse again—and I may get worse this very night.
另一方面，婴儿无论是否与母亲睡在同一个房间，他们的睡眠质量似乎都没有变差。
Infants, on the other hand, didn't appear to have worse sleep whether they slept in the same or different room from their mothers.
根据一项研究，如果孩子频繁使用社交媒体，特别是在晚上，他们的睡眠将会变差，也会感觉更焦虑和消沉。
According to the research, if a kid uses social media a lot, especially at night, he or she will sleep worse and feel more nervous and depressed.
随即，环境又开始变差，直到下一次清洗。
Then immediately, the environment starts to degrade again until the next cleaning.
随即，环境又开始变差，直到下一次清洗。
Then immediately, the environment starts to degrade again until the next cleaning. .
当频繁的切换窗口任务时，他们的表现就变差。
When they toggled between Windows and other tasks, they performed worse.
我的判断变差了而且我惯常的执念给冲动让道了。
I exercise poor judgement in my decisions and my usual obsessive planning gives way to impulsiveness.
例如减少页面包含文件数量会造成产品的可维护性变差。
Cutting down on the number of included files for example impedes maintainability of the product.
如果一段关系变差，是否你本应该改变做法来改善它呢？
If a relationship goes bad, are there things that you could've done differently to have helped it?
你的身体被迫去接受这些改变并且睡眠质量也会随之变差。
Your body is forced to adjust to these changes and, as a result, your quality of sleep is poor.
该规则说明告诉您，显式静态构造函数会导致代码性能变差。
The rule description tells you that an explicit static constructor results in code that performs worse.
那次相撞让他的头很疼，但最糟的是让他的精神状态变差了。
That may have given him a sore head but the biggest worry had to be his spirit.
根据接收的事件数量，这个表会不断增长，最终导致性能变差。
This table could continue to grow, depending on the number of events received with contexts, ultimately resulting in poor performance.
当信心变差，自尊心受挫，想要严格执行减肥计划，变得更难了。
When confidence fades and self-esteem takes a beating, it's harder to stick with a weight loss program.
这会彻底使一个图像变差，或某些时候，被用来制造一种有趣的效果。
This can radically alter an image for the worse, or, in some cases, be used to create an interesting effect.
首先你应该知道既然你有能力让情况变差那么你肯定有能力改善这种状况。
Start off by knowing that if you have the power to make your situation worse you certainly have the power to make your situation better.
聪明药：变老是不是就意味着记忆变差？行动迟缓？并且会变得思绪混乱？
Smart drugs: Does getting old have to mean worsening memory, slower reactions and fuzzy thinking?
你的大脑细胞在这个过程中更新。研究表明，缺乏睡眠会使认知及记忆变差。
Your brain cells renew and studies show that people who don't get adequate sleep do worse on cognitive and memory tasks.
你的大脑细胞在这个过程中更新。研究表明，缺乏睡眠会使认知及记忆变差。
Your brain cells renew and studies show that people who don't get adequate sleep do worse on cognitive and memory tasks.
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