崩溃得无法想象怎么说英语

If you are unable to imagine how to express something in English, it might be helpful to try breaking the idea down into smaller parts or finding synonyms for the words you are trying to use. You could also try using a translation tool or seeking the help of a native English speaker or language learner. Here are a few ways you might describe something that is "unimaginable" or "unfathomable" in English:

Beyond comprehension
Inconceivable
Unbelievable
Unthinkable
Baffling
Mysterious
Mind-boggling

For example:

"The scale of the disaster was beyond comprehension."
"The idea that he could have done such a thing is inconceivable."
"The events of the past year have been unbelievable."
"The thought of losing him was unthinkable."
"The solution to the puzzle was baffling."
"The origins of the universe are mysterious."
"The complexity of the human brain is mind-boggling."

I hope this helps! If you have any more questions, please don't hesitate to ask.