音标：[.ekstә:'næliti] ；

n. 外形, 外在性

n the quality or state of being outside or directed toward or relating to the outside or exterior

词型变化：名词复数形式 : externalities

词性分布：

名词100%

externality的用法和样例：

例句

用作名词(n.)

Pollution is a common example of an externality that leads to market failure.污染是外部性导致市场失效的一个常见的例子。
He accepts the need for government intervention to deal with externality.他承认需要政府的干涉，以处理外部因素。

词汇搭配

consumption externality消费外部性
static externality静态外在因素...

【近义词】

outwardness客观存在(客观性)...

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