To take an extreme example, farmlands dominated by a single crop are so unstable that one year of bad weather or the invasion of a single pest can destroy the entire crop.

举个极端的例子，以单一作物为主的农田是如此不稳定，一年的坏天气或单一害虫的入侵可以摧毁整个作物。

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The video camera that one single mother bought for a special occasion, for example, is not much fun now.

例如，一个单身母亲为特殊场合买的摄像机现在就没什么意思了。

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So, this is just one example of how these properties can already, even our understanding just talking about single atoms, can already make an impact in these biological systems.

这只是一个例子，通过它我们可以看到，尽管我们仅仅讲到了单个原子，但我们现在已经可以用它的性质来理解一些生物系统。

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So, this is just one example of how these properties can already, even our understanding just talking about single atoms, can already make an impact in these biological systems.

这只是一个例子，通过它我们可以看到，尽管我们仅仅讲到了单个原子，但我们现在已经可以用它的性质来理解一些生物系统。

麻省理工公开课 - 化学原理课程节选

Here is just one example: Single-celled marine plants produce fully half of all the oxygen in our atmosphere.

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For example, a "single account" is one account category that includes deposits in checking, savings accounts, money market deposit accounts and time deposits such as certificates of deposit (CDs).

FORBES: Magazine Article

In one example, insurers and Medicare switched to identifying every doc by a single number rather than having a different one for each plan.

FORBES: Magazine Article