Are grounds litter-free and is grass properly cut?
场地是否无垃圾？草是否被合适割除？
What sensible nation would not want to capture and recycle its precious and finite resources? What discerning people would not want to enjoy a litter-free environment?
任何一个关心环境问题的国家都不愿放任其珍贵且有限的资源流失，而不加以循环利用；任何一个有辨别能力的人都想享有一个清洁的环境。
In worm-free woodlands, leaves pile up in drifts on the forest floor. Trees and shrubs in wormless places depend on litter for food.
在没有蚯蚓的林地里，落叶成堆地堆积在森林的地表，树木和灌木丛依靠枯枝落叶层生长。
During the SARS emergency, Beijingers have been paying attention to public hygiene. Now most streets are clean and free of litter.
在抗击非典的日子里，北京市民格外注意环境卫生，很多大街小巷几乎是一尘不染。
During the SARS emergency, Beijingers have been paying attention to public hygiene. Now most streets are clean and free of litter.
在抗击非典的日子里，北京市民格外注意环境卫生，很多大街小巷几乎是一尘不染。
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