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Afewdaysago，adifficultproblemwasencounteredwhenIwritelineofbusiness，mythinkhard，brushontheheadwiththepenwillobliterate，wanttoknowrightanswerverymuch.WhenIputdownthepen，asithappenshasoneflakepapertobeontheside，adheredwiththepenatadraught，Iwasstupefied，aunitoflength2bonze--feeldonotwearbrains，howisthistoreturnaresponsibilityafterall？Then，Itriedafewtimescontinuously，smallscripwasstucktogoupbythepen，Ithink：doesitalsohavethefunctionthatcanyousuckironlikemag？Mysuddenlybeenlightened，theteacherhassaid：Wantaplasticstufftochafeontheheadonly，canariseelectrostatic，somysmallscripcanbeadheredbythepen.
Original，thereisscienceeverywhereinthelife，wantustoobserveseriouslyonly，tryhardtoexplore，candiscoveralotofsecret！