Realtime shadows are quite performance hungry, so use them sparingly.
实时阴影相当消耗性能，因此谨慎的使用它们。
因此我们可以使用它们？
那么人们要怎么使用它们呢？
Since they are so useful, our example databases use them.
因为它们这么有用，所以我们的数据库使用了它们。
So why not use them to restore sight to the blind?
那为什么不能使用其来恢复盲人的视力呢？
Read the package to figure out how to use them, or go to your family doctor or a health clinic so someone can help you figure it out.
好好读一下使用说明弄清楚怎么用，或者问一下你的家庭医生、诊所医生，让他们帮你弄清楚怎么用。
So I thought, could I use them to under-stand today's China?
于是我想，我可不可以通过它们来了解今天的中国？
So pay attention to what is required to make the most effective use of them.
所以你要注意怎样能够最有效的使用他们。
So many people just use them as a substitute to plastic shopping bags.
所以很多人就把他们当成塑料袋的替代品。
So it's not obvious how to use most of them for my toy application.
因此对上面的娱乐应用程序没有明显的用处。
Again, you use install_mouse_handlers so that you can restore them later.
同样地，可以使用install_mouse_handlers以便以后恢复它们。
So how do we know when to use them?
那么，我们如何知道什么时候使用它们呢？
If extended partitions are so great, why not just use them?
既然扩展分区这么给力，那干嘛不用扩展分区呢？
Letters are variables, so you must assign a value to them before you use them.
字母是变量，所以使用之前必须先为其赋值。
So, now we use them in fish ponds.
所以，现在我们利用这些鱼塘。
A few abbreviations are so common that you can use them without guilt.
有一些极为常用的缩写形式，您仍然可以放心使用。
So keep them away from direct contact of sunlight when they are not in use.
因此，让他们远离阳光直接接触时，他们没有在使用中。
So, why not use them whenever possible?
因此，可能的话，何不多多使用这些话呢？
Use variables to hold intermediate values so you can display and check them.
用一些变量来存储中间值，这样你可以显示一下这些值，来检查一下。
Use: Shrouds you from nearby enemies so you seem less threatening to them.
使用：隐藏你的身形，降低附近的敌人攻击你的可能性。
So when you use a puppet, a glove puppet, they know it's a puppet and yet at the same time for them it's alive!
所以当你使用手指偶时，他们知道那是个木偶，但同时对他们来说那也是有生命的！
So on a project I'm working on currently I have decided to use them.
等项目我对目前的工作我已经决定使用他们。
Signal handling: how to parse code and status so WIFEXITED etc. can use them?
信号处理：如何解析代码和状态，wifexited等可以使用它们？
So you may need to study a few words before you use them.
所以，你可能需要研究几句话，然后再使用它们。
So we have not only to defend against them but use the ball better than we did in the first half.
所以我们不一定去击败他们，而是要比我们上半场更好的支配球。
So, you are bound to run them for personal use only.
所以，你一定要运行它们只是供个人使用。
We must use these glasses carefully so as to not to break them.
我们必须小心使用这些玻璃杯以便不会打破。
We must use these glasses carefully so as to not to break them.
我们必须小心使用这些玻璃杯以便不会打破。
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