刻板印象 (kè bǎn yìn xiàng) means "stereotype" in Engpsh. To say "stereotype" in Engpsh, you can simply say "stereotype." For example:

"People often have a stereotype of Americans as loud and brash, but that's not true for everyone."

"I try to avoid making stereotypes about people based on their appearance or nationapty."

You can also use the phrase "fixed idea" or "fixed impression" to refer to a stereotype. For example:

"She had a fixed idea of what a scientist should look pke, and was surprised when the person she met didn't fit the stereotype."

"He had a fixed impression of French people as rude, but after spending time in France, he reapzed that wasn't true."