A：What do you do?
    你是做什么工作的?
    B：I'm a teacher.
    我是老師。
    注釋：
    a.What do you do?
    (你是做什么工作的?)
    = What line of work are you in?
    (你是從事哪一行的?)
    = What do you do for a living?
    (你做什么謀生?)
    b.living n.生計
    make a living 謀生
    例：I make a living by teaching.
    = I teach for a living.
    (我靠教書為生。)