What does How are you, How old are you mean?

1. How are you translates into: How have you been (recently)? How are you? It is often used to express greetings in English, just like in Chinese, have you eaten? The weather is nice today. Used in daily greetings between acquaintances. Usually answer: I am fine, and you? I am fine. And you?

2. How old are you translates into: How old are you? How old are you?

Can answer: I am years old. For example, I am 14 years old (I am 14 years old) Years old)

Or a short answer: age years old. Such as 14 years old

A simpler answer can be directly: age. Such as 14 (forteen).