假定你校正在开展“根除陋习，创建文明校园”活动。请你以此为主题写一篇发言稿，向全校学生倡议：
根除：乱扔垃圾，浪费粮食，吸烟。。。
提倡：讲礼貌，互助。。。
注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯；3.开头和结尾已为你写好，不计入总词数。
Dear friends,
As is known to all, our school has launched a campaign against bad habits in order to establish a civilized campus,
____________________________________________________________________________________________
____________________________________________________________________________________________
_____
That’s all. Thank