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The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri

他們保存歷史的唯一辦法是將歷史當作傳說講述，由講述人一代接一代地將史實描述為傳奇故事口傳下來。

enterprising settlers unwisely introduced the European rabbit.

一些有創業精神的移民不明智地把歐洲兔子引進了澳大利亞。

Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.

藏書使教育成為可能，而教育反過來又豐富了藏書，因為知識的增長遵循著一種“滾雪球”的規律。印刷術的發明又大大提高了知識增長的速度。

it is very rarely that one comes across a dead body, except, of course, on the roads.

但是，除非在路上，很少有人遇到這些動物的尸體，

It is the one world in the Solar System that is most like the Earth.

火星是太陽系里與地球最接近的一顆行星。

Carbonated drinks are acidic, and slightly safer.

碳酸飲料是酸性的，就更安全一些。