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Because of large number of trees having been
cutdown so that a large area of foregst has
been declining,which results in many serious
environmental problems.However,to people there is awareness of stump.When you tear up the outer wrapping paper,just as tore up a lager
of bart,the two ends lines of the Web look
like the lines of tree-ring patterns,when you
tear up lapby lap to use,the rings get smaller
and smaller,just as life which disappears
gradually.In ordinary life,warning of resourceand environmentalissues.
Li Xia Chen Youyou Jin Guiyuan