1.30的英语怎么说

"1.30" in English is spoken as "one point thirty".

This is because in English, numbers are often spoken in the format of "whole number" + "point" + "decimal number". The word "point" is used to indicate a decimal point in numbers, and the number after the point is spoken as individual digits.

For example:

"1.25" would be spoken as "one point twenty-five"
"3.14" would be spoken as "three point fourteen"

Examples in sentences:

"I'll meet you at one point thirty in the afternoon" (我会在下午1:30见你)
"The movie starts at one point thirty" (电影在1:30开始)
"I have an appointment at one point thirty" (我有一个1:30的约会)