| 保持,校园,清洁,Keep,our,school,clean | |
| We are studying in this school. It is our duty to keep it clean and tidy. It is not good to spit in public places, such as in the library, in the class. We shouldnt leave rubbish here and there. Dont draw pictures on the wall, they influence http://www.yyessay.com/chuzhong/391.html | |
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