例句：
It was perceptibly colder.
天氣明顯地冷了。
The air became colder as we ascended.
隨著我們往上攀登，空氣就寒冷起來。
The wind-chill factor will make it seem colder.
風寒系數大，會使人覺得比實際溫度更冷一些。
What is the coldest object in space?
太空里最冷的物體是什么？
This is the coldest day in ten years.
這是10年來最冷的一天。
It is, of all distresses, the coldest.
這是一切窮困中最冷酷無情的窮困。