Pushed only by an electronically driven "ion engine", Deep Space One is already over 100 million miles from Earth.
由电动离子发动机推动的“深空1号”已经到达距离地球一亿英里的地方。
Currently, around 1.4 million residents over the age of 18 are from families with only one child.
现在将近有一百四十万年龄在18岁以上的人来自独生家庭。
There are over 550 million firearms in worldwide circulation. That's one firearm for every twelve people on the planet. The only question is: How do we arm the other 11?
在这世界上一共有伍亿伍千万支军火在流通,那就是说每十二个人就有一支枪,唯一的问题是:我们如何让其他十一个人也有枪?
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