"Isn't she your aunt?" the husband responded. (Para. 10)
Meaning: "Isn't she your aunt?" the husband answered.
respond: vi. answer
He didn't respond to my question. 他没有回答我的问题。
When a boy hit his brother, his brother may respond to this action by hitting back. 当一个男孩动手打他的兄弟，他兄弟可能会动手回击。
Liquids respond to changes in temperature. 液体随着温度变化而变化。