In between live ranges, the value of a variable is not needed: it is dead, so its register can be used for other variables, allowing the compiler to allocate more variables to registers.
在生命范围之外，变量不再被使用，是死的，它的寄存器可以供其他变量使用，这样，编译器就可以安排更多的变量到寄存器当中。
The obvious way to do this is to force people to register for websites, or even to pay (which reveals their credit-card details and where they live).
最明显的方式就是强制人们注册或者付费（这样可以获得顾客的信用卡及居住地信息）。
If you’re going to be in Washington, DC, you can attend the release event in person ( RSVP here) – or register to attend the live web cast, and they will send you the information once it is available.
如果你刚好要去华盛顿特区的话，就可以以个人身份出席该报告的发布会（ 点击这里回复 ) -或者注册参加在线网络直播，他们将会在第一时间将相关信息提供给你。
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