Aren't you cold? 你不冷吗？

Are you not cold? 同上

Don't you feel cold? 你不觉得冷吗？

Are you cold? 你冷吗？

Do you feel cold? 你觉得冷吗？

Is it cold in here? 这里冷吗？

It is cold in here 这里冷

It is chilly.

chilly 冷的让人颤抖

不同程度的“冷”： cool - chilly - cold - freezing cold

Is it cold outside? 外边儿不冷吗？

It is cold outside 外边儿冷

It is chilly outside

I am cold 我很冷

I feel cold 我觉得冷

I am chilled 我冷却了