文章以工业污染的社会环境成本为研究对象。
This paper takes the social environment cost of industrial pollution as research object.
从我做起，从小事做起，为举办世博会创造良好的社会环境。
Create a better social environment for EXPOs from trifles and from ourselves.
父母为他们孩子当前所处的社会环境担忧。
Parents are worried about their children in the current social surroundings.
父母为他们孩子当前所处的社会环境担忧。
Parents are worried about their children in the current social surroundings.
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