example 普通用词，指能代表同类事物性质或一般规律的典型例子。
instance 多指用于说明、支持或反证一般事实或理论的事例。
case 多指需要加以认真研究的实例，如病例，案例等。
sample 通常指样品。
illustration 指用来说明、解释某种理论或看法而引用的例证。
specimen 可与sample换用，但常指人或物中选出的有代表性部分，或指供科研、化验或检验用的标本。
参考例句
1. I like to sample a life in the country. 我想体验一下乡村生活。
2. This sample is gratis. 这样品是免费的。
3. Very high quality sample rate conversion. 极高质量的改变采样率。
英英解释
n.
1. a small part of something intended as representative of the whole
2. items selected at random from a population and used to test hypotheses about the population
3. all or part of a natural object that is collected and preserved as an example of its class v.
1. take a sample of
