Definition
to speak to an individual in a condescending manner, implying they are less capable or significant.
用自高自大的语气对某人说话
He always talks down to me, making me feel worthless.
他总是对我说话高高在上，让我觉得自己一无是处。
If you continue to talk down to your colleagues like that, they will have no respect for you.
如果你继续那样对同事说话高高在上，他们不会尊重你。
Teachers shouldn't talk down to students, as it can affect their self-esteem.
老师不应该对学生说话高高在上，因为这会影响他们的自尊心。