![Germs(细菌)areeverywhere.Youcan’tseethem,buttheyareonyour...]( "Germs(细菌)areeverywhere.Youcan’tseethem,buttheyareonyour...")
- 问题详情：Germs(细菌)areeverywhere.Youcan’tseethem,buttheyareonyourdesk,onyourcomputer,andevenintheair!Likepeople,germsmovearoundtheworld.Theyflywithusonplanes.Whenfood,clothes,andotherthingstravelaroundtheworld,germstravel,too.Somegermsaresafe,butsom...
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