91个用英语怎么说

"91" in English can be written and pronounced as "ninety-one." It is a cardinal number that represents the quantity of 91 items.

The number 91 comes from the base 10 numbering system that is commonly used in most parts of the world. In this system, the number 91 is made up of the digits 9 and 1, which represent the quantities of 9 tens and 1 one.

Here are some examples of how "91" can be used in English sentences:

"I have 91 pencils in my pencil case." (我的铅笔盒里有91支铅笔。)
"She is 91 years old." (她91岁了。)
"The flight number is 91." (航班号是91。)
"The store is located at 91 Main Street." (商店位于主街91号。)