Weather forecast 1 to 9, wine number upside down 98765432 1.

Yes, the previous one is the lowest (below zero) or the highest (above zero). For example, -7-1 (the previous number represents the lowest temperature below zero); If 7 1 (the previous figure is also the highest temperature), that's what the sentence emphasizes. What is the coldest or hottest temperature? Let's see clearly that this is also a special way to make sentences.