翻译英文：接下去几天天气转凉。

The weather will become cold in the next several days

It will get cool in the coming several days .

The weather will become cold in the coming days。

Goes a few days in cooler weather.
再给你一个网站是在线翻译的网站
http://www.hao123.com/ss/fy.htm
以后你有些什么不懂的直接可以去在线翻译下，可以翻译成很多语言。注意不要忘记把语言种类换成你想要的，这类网站很多，BAIDU直接搜索就能找到。