第1个回答 2013-10-25
天气变得越来越凉快了
The weather is growing cool.
第2个回答 2013-10-25
The weather is getting cooler and cooler.
It is getting cooler and cooler.
第3个回答 2013-10-25
The weather is getting cooler and cooler.
第4个回答 2013-10-25
it becomes colder amd colder.