dealbreaker
noun [ C ] informal uk/?di?l?bre?.k?r/ us/?di?l?bre?.k?/
（使人下定决心不做某事或不买某物的）决定性因素
something that is important enough to you to prevent you from agreeing to something, buying something, etc.
The bathroom is downstairs, but weighed against all the other great features, perhaps that isn't a dealbreaker. 浴室在楼下，但是跟其他所有的优点相比，也许不会成为让买卖不能成交的决定性因素。
- More examples
- If he says he doesn't want to move, then you need to decide if it's a dealbreaker for you.
- We'd prefer the valuation points were all similar, but it's not a dealbreaker.
- If a partner won't accept your friends or family, that's usually a dealbreaker in a relationship.
- I really liked the device, but the dealbreaker for me was that it only worked with a projector.