Undefinition
[计] 未定义, 未定界
🗣️ 情景例句
Hello, my name is Susan.
喂，你好。我的名字叫苏珊。
What's the height of the building?
这座楼有多高？
May I? Thanks. Oh, this one is nicer than the other one. What's in it?
可以吗？谢谢。噢，这个比那个更好点儿。里面放的是什么？