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.

FORBES: Is the Great Barrier Reef Doomed? One of the World's Leading Coral Scientists Thinks So

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