xiaozeixiaoben 发表于 13-4-2011 17:00:19

各位朋友帮帮忙，怎么理解这几句英文啊？

# Use your linked, in-text referenced paragraphs on fluoridation.

# Place and appropriate Introduction paragraph at the beginning of your linked paragraphs.

# Place and appropriate Conclusion paragraph after your last linked paragraph.

frozen_heart770 发表于 13-4-2011 19:08:58

专业写作么？还是学校作业？出自哪里？你的理解是什么呢？或者说一下你哪里不太确定？

[ 本帖最后由 frozen_heart770 于 13-4-2011 18:52 编辑 ]
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