坏天气增加了我们的困难。（weather, add to , difficulty）

好天气使我们的下周出游成为可能。

The fine weather___________________________ for us to go for an outing next week.

由于天气原因，他所有的努力都白费了。

Because of the bad weather, all his efforts were _________________.

近期，雾霾天气频频发生，PM2.5（可入肺颗粒物）与PM10（可吸入颗料物）这两个此前不被人熟知的词最近一直被许多人提及，环境保护越来越受到人们的关注。作为一名青少年，我们如何尽可能自己的微薄之力来保护环境，请以学生会的名义发出一个倡议。
要点；
1、环保受到人们更多的关注；
2、环境的现状；
3、应采取的措施。
提示：雾霾天气：Dust-haze weather
注意：词数120词左右（格式已给出，不计入总词数）。
My fellow students,
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
The Students’Union