Teacher: Which is farther away---Australia or the moon?Bobby: Australia.Teacher: Why do you say that?Bobby:We can see the moon, but we can't see Australia.

教师：澳大利亚和月球哪个离我们更远一些？勃比：澳大利亚。教师：你为什么这么说呢？勃比：我们可以看见月球，但我们却看不见澳大利亚。