And a person might use it to emphasise that their small children have still left residence or are not dependent on them. But You would not introduce another person as "my adult boy or girl/ren". Stuart F 知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。 Jay 37k33 gold badges6464 silver badges111111 bronze badges 2 Like https://us.hc6.org/