1. out of line / over the line / cross the line something is beyond what you think is ok . something is inappropriate . i know i was late, but it was totally out of line for him to directly fire me . 2. a fine line 微妙的界限，一线之隔 the line is blurry , it's hard to tell the differences . there's a fine line between x and y . there's a fine line between working hard and being a workaholic .工作狂 there's a fine line between liking coffee and being addictive to it . 3. blow up at 对某人/某事大发脾气 If you are not happy, relationship problems could blow up at this time, making you feel like you are walking a high wire. 走高空钢索 I wanted to, but I knew that if I sopke to her, I'd just blow up at her, so I decided to just go home.

AEE 2219: Are You Out of Line? How to Talk About Boundaries in English

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