warm v.s. hot

1. 关于天气：今天太热了
错误表达：Today is too hot.
正确表达：It’s too warm today.

2. 关于水喝热水：
温开水
warm boiled water（warm water）
Quora上对中国人的评价：
- What’s the most Chinese thing Chinese people can do?
- Drink warm boiled water.
For foreigners, the idea of reaching a glass of warm water in the summer might seem a little odd.

hot water 刚刚煮开的水（用于咖啡泡茶等）
烫 The soup is still hot.

3. hot的歧义
麻烦/ 困境 （热锅上的蚂蚁）
- be in hot water
- get into hot water
- I’m recently in hot water because I can’t get the money in time.
辣 Is the chili sauce really hot?
性感 You are such a hot girl!