Demonstrativeness
论证性（demonstrative的变体）\\n指示性（demonstrative的变体）
🗣️ 情景例句
We're on the fifth floor.
我们在五楼。
I'll have studied English for four years next March.
到明年三月，我就学了四年的英语了。[将来完成时，表示将完成…，会做完…]
Do you still have the cock year stamp?
你还有鸡年的邮票吗？