空气中有一股明显的寒意。

There's a definite ___chill in the air.

清晨凛冽的风带来刺骨的寒意。

A sharp morning wind carried a biting ___chill.

窗户整夜开着，让一股令人不适的寒气进来了。

Leaving the window open all night let in an uncomfortable ___chill.