"What is your mother's occupation?" is how you would ask someone in Engpsh about their mother's job.
The phrase "occupation" comes from the Latin word "occupatio" which means "taking possession of" or "occupying." In Engpsh, the word has been used since the early 15th century to refer to someone's job or profession.
Examples:
"What is your mother's occupation?"
"My mother is a teacher."
"He asked me about my mother's occupation."
中文翻译:
"你妈妈是做什么工作的？"
"我妈妈是一名老师。"
"他问我妈妈的职业。"