"commit"与"perpetrate"在表示"犯罪"含义时的用法辨析如下：
1. 语义强度差异：
-- commit：中性词，泛指实施某种行为（可好可坏），作"犯"解时多用于常规罪行
例：commit a crime（犯罪）/ commit suicide（自杀）
-- perpetrate：贬义强烈，专指实施恶性、不道德或暴力行为
例：perpetrate a massacre（实施大屠杀）
2. 搭配范围差异：
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word-vs-word-cn
【Commit】 , 【perpetrate】 mean to be responsible for or to be guilty of some offense or mistake.
【Commit】 is the term regularly used in prohibiting (as 'in some of the Ten Commandments) or to describe engaging in an action that is counted a sin, crime, or offense.
In less specific use the word may mean little more than do or perform, but it retains to a greater or less degree its implication of reprehensibility.
【Perpetrate】 basically implies the committing of a crime and often so strongly carries the notion of crime or offense that a neutral word can be used as the object of the verb without any doubt as to its offensive character.
However, 【perpetrate】 is also freely used of acts or actions which though not criminal are morally, socially, intellectually, or artistically reprehensible and which may range from the utterly outrageous to the mildly deplorable.
