她一定是疯了用英语怎么说？

How to say "She must be crazy" in English?

Meaning: This phrase is used to express that the person in question is behaving in a strange or irrational manner, suggesting that they may have lost their sanity.

Usage: This phrase can be used in a variety of situations where someone's actions or behavior seem out of the ordinary or irrational.

1. I don't understand why she would quit her stable job to pursue her dream of becoming an artist. She must be crazy.

2. Did you hear about John? He sold all his possessions and moved to a remote island. He must be crazy.

3. She wants to climb Mount Everest without any training or experience. She must be crazy.

4. I can't believe she got married after only knowing him for two weeks. She must be crazy.

5. My boss wants me to work overtime every day this week. He must be crazy.

Please note: The use of this phrase can sometimes be considered offensive, so it's important to use it carefully and with consideration for the context and the feelings of others.