3.38用英语怎么说

3.38 is a decimal number. In English, we would say "three point three eight" to represent this number.
The number comes from the fact that 3 is the whole number, and the decimal point separates the whole number from the fractional part of the number. The fractional part, 0.38, is read as "point three eight."
Here are some examples of how you could use this number in a sentence:
"I scored a 3.38 on my math test." (我数学考试得分为3.38。)
"The temperature is 3.38 degrees Celsius." (温度为3.38摄氏度。)
"The package weighs 3.38 kilograms." (包裹重量为3.38千克。)
I hope this helps! Let me know if you have any other questions.