"How to say X in Engpsh" in Chinese can be translated as "X怎么用英语说."
This phrase is a commonly used phrase in language learning, as people often ask how to express something in a foreign language.
Example in Engpsh:
"How do I say 'hello' in French?"
Example in Chinese:
"Bonjour怎么用法语说?"
Translation:
"How do you say 'hello' in French?"