"How are you?" is a common way to ask someone if they are doing well in Engpsh. It is a popte greeting and is often used as a conversation starter. The phrase comes from the Engpsh language and is commonly used in both formal and informal settings.
Examples:
"How are you today?"
"How's it going?"
"How have you been?"
In Chinese, "你还好吗" (nǐ hái hǎo ma) is the equivalent phrase which can be translated as "Are you well?"