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to cross the line
01
to show a behavior that is unacceptable or improper
![to [cross] (the|a) line definition and meaning](https://cdn.langeek.co/photo/43943/original/?type=jpeg "to [cross] (the|a) line definition and meaning")
What is the origin of the idiom "cross the line" and when to use it?
The idiom "cross the line" likely emerged from the concept of drawing lines or boundaries to establish acceptable behavior or standards. By crossing the line, someone is symbolically stepping over that boundary, often into territory that is considered unacceptable, offensive, or morally objectionable. It is often used to describe situations where someone's actions, words, or behavior overstep what is considered acceptable, appropriate, or morally right.
例子
The comedian's jokes crossed the line and began to insult certain groups, causing discomfort in the audience.
The politician crossed the line with their offensive remarks, resulting in widespread public backlash.
She consistently crosses the line by making personal attacks during arguments.
The comedian's sardonic jokes about current events crossed the line from humor to outright insult.
She regretted her harsh words during the argument, realizing they had crossed a line.
