Definition
- C1
This idiom indicates a subtle difference or boundary between two things, often used when one thing is acceptable and the other is not.
一线之间（差异极微）
In business negotiations, there is often a fine line between confidence and arrogance.
在商业谈判中，自信和傲慢之间往往只有一线之隔。
There is a fine line between satire and offense, so be careful what you say.
讽刺和冒犯之间只有一线之隔，所以要小心说话。
In art, there is sometimes a fine line between originality and plagiarism.
在艺术中，原创和抄袭之间有时只有一线之隔。