
好词典

源自希腊语 'dichotomia'(διχοτομία),由 'dicho-'(两部分)和 '-tomia'(切割)组成,17世纪进入英语。
❶ 指事物被分成两个互斥或对立的类别或部分,常用于描述非黑即白的分类方式。
“The survey used a dichotomous question format with only 'yes' or 'no' options.”
(该调查采用二分法问题形式,只提供'是'或'否'的选项。)
“His thinking is often dichotomous, seeing things as either completely right or wrong.”
(他的思维常呈二分性,认为事物非对即错。)
dichotomous thinking — 指将复杂事物简单划分为两个极端类别的思维模式,忽略中间可能性。
“Dichotomous thinking can lead to oversimplification of nuanced issues.”
(二分法思维可能导致对复杂问题的过度简化。)
dichotomous variable — 统计学中只能取两个可能值的变量,如真/假、成功/失败等。
“In the study, smoking status was treated as a dichotomous variable (smoker/non-smoker).”
(研究中吸烟状态被作为二分变量处理(吸烟者/非吸烟者)。)