饥饿天使是一个隐喻，饥饿如影随形地跟踪着你。

To sing of one's land is to love it twice.

被爱的欲望也许是我们所有虚荣心中最根深蒂固的。

At that age， I'd take any excuse to make estimates and do minor arithmetic. I'd calculate our gas mileage -- figure out useless statistics on things like grocery spending. I'd been hearing an ad campaign about smoking. I can't remember the details， but basically the ad said， every puff of a cigarette takes some number of minutes off of your life: I think it might have been two minutes per puff. At any rate， I decided to do the math for my grandmother. I estimated the number of cigarettes per days， estimated the number of puffs per cigarette and so on. When I was satisfied that I'd come up with a reasonable number， I poked my head into the front of the car， tapped my grandmother on the shoulder， and proudly proclaimed， "At two minutes per puff， you've taken nine years off your life！"

作家的角色是作为一个见证者，为那些不能为自己发声的人发声。

模型检查是验证硬件和软件系统正确性的强大工具。