- 问题详情:Haveyoueverbeenill?Whenyouareill,youmustbeunhappybecauseyourbodybecomeshot,andtherearepainsalloveryourbody.Youdon'twanttowork,youstayinbed,feelingverysad.Whatmakesusill?Itisgerms(细菌).Germsareeverywhere.Theyareverysmallandyoucan'tfindthemw...
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