in the spring ,chengdu's weather is warm
in the summer ,chengdu's weather is so hot.
in the autunm ,chengdu's weather is cool
in the winter ,chengdu's weather is cold
in the spring ,chengdu's weather is warm
in the summer ,chengdu's weather is so hot.
in the autunm ,chengdu's weather is cool
in the winter ,chengdu's weather is cold