instance
单词辨析：
指某个特定情况的例子。
His report highlights some instances of discrimination.
他的报告重点列举了一些歧视的事例。
In this instance she admitted that he was wronged.
在这一点上她承认他被冤枉了。
指用来解释、支持某一概括性观点或代表某个群体特点的具体的人、事物等。
Would you please give me an example of an attributive clause?
你能不能给我举个定语从句的例子呢？
This building is a good example of European architecture.
这栋大楼是欧洲建筑风格的范例。
指从某一群体中选取出来的一部分人或事物，以供检验并发现有关该群体的信息。
The nurse took a blood sample for tests.
护士取了一份血样去化验。
They wanted to see some samples of his products.
他们想看看他的产品的一些样品。
指用于医学化验的血液、尿液或其他体液样本，或其他用于测试、检验的样品，也可指供学习、研究等用的动物、植物、矿物等的实例。
His blood specimen has been sent to the hospital.
他的血样已经被送到了医院。
He has collected hundreds of rock specimens in the past few years.
在过去几年里，他收集了几百种岩石标本。
相关例句：
The systems described here have included one broker or queue manager instance that is active and one standby.
这里描述的系统包含一个活动代理或队列管理器实例和一个备用实例。
Ethiopia, for instance uses the equivalent of just twenty kilos of oil per head a year.
比如说，埃塞俄比亚每年的人均消费支出仅相当于20公斤的石油。
With major life traumas, like losing a loved one, for instance, the mind's first reaction is denial
面对生活中的重大不幸，如失去至爱的人等，人们的第一反应就是拒绝接受。
It is not a unique instance, but has its counterpart.
无独有偶。
For instance, the customer has an IBM midrange mainframe system from the System z family.
例如，客户拥有一个System z系列中的IBM中端大型机系统。
There are jobs more dangerous than truck driving; for instance, training lions.
有的工作比驾驶卡车更危险，例如驯狮。