our ours

Not even a great health-care system can cure death—and our failure to confront that reality now threatens this greatness of ours.

即使是一个伟大的医疗体系也无法治愈死亡，而我们未能直面这一现实，现在正威胁着我们的伟大。

We used to give a lift in our carriage to this schoolfellow and author who is also a friend of ours.

我们常常请我们这位兼作家兼朋友的同学搭乘我们的马车。

Since the lifetime of a planet like ours is several billion years, we can expect that, if other civilisations do survive in our galaxy, their ages will range from zero to several billion years.

由于我们这样的行星的寿命是几十亿年，我们可以预测，如果我们星系中有其他生物生存，它们的年龄将从零到几十亿岁不等。