(especially of an unwelcome influence or physical effect)spreading widely throughout an area or a group of people
(尤指讨厌的影响或身体感受)弥漫性的,渗透性的;遍布的,流行的
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ageism is pervasive and entrenched in our society .年龄歧视在我们的社会中非常普遍而且根深蒂固。
"mid 18th cent.: from Latin