七百用英语怎么说

七百 (qī bǎi) is the Chinese way to write the number "700". In English, you can say "seven hundred" to represent the number 700.

来源：

七百 is composed of two Chinese characters: 七 (qī) which means "seven" and 百 (bǎi) which means "hundred". Together, these characters represent the number 700.

例句：

There were 700 people at the concert last night.
昨晚演唱会上有700人。
I need to buy 700 pencils for the school.
我需要为学校买700支铅笔。
The airplane can fly at a maximum altitude of 700 meters.
这架飞机能够飞行的最大高度是700米。

希望这些信息对你有帮助。