As our essay in this week’s issue explains, viruses are best thought of as packages of genetic material that exploit another organism’s metabolism in order to reproduce. They are parasites of the pu ...
 As our essay in this week’s issue explains, viruses are best thought of as packages of genetic material that exploit another organism’s metabolism in order to reproduce. They are parasites of the purest kind: they borrow everything from the host except the genetic code that makes them what they are. They strip down life itself to the bare essentials of information and its replication. If the abundance of viruses is anything to go by, that is a very successful strategy indeed. 这是《经济学人》2020年8月刊的一篇文章'The aliens among us'第4段，共4句。 1、 {'exploit':'开发，开采'} {'metabolism':'新陈代谢'} 正如这周的文章表示的，病毒被认为是利用另一种有机体的新陈代谢来繁殖的遗传物质。 2、 {'parasites':'寄生虫'} 它们是最纯粹的寄生虫：它们从宿主那里借来一切，除了使它们成为需要的样子的遗传密码。 3、 {'essentials':'要素'} 它们将生命本身剥离成信息及其复制的基本要素。 4、 病毒的大量存在可以证明这是一个非常成功的策略。 --总结-- 【词汇部分】 {'exploit':'开发，开采'} {'metabolism':'新陈代谢'} {'parasites':'寄生虫'} {'essentials':'要素'}  |
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