阅读理解（科普类）04九、Howfitareyourteeth?Areyoulazyaboutbrushingthem?Neverfear:Aninventorisonthecase.Anelectrictoothbrushsenseshowlongandhowwellyoubrush,anditletsyoutrackyourperformanceonyourphone.TheKolibreetoothbrushwasexhibitedattheInternationalConsumerElectronicsShowinLasVegasthiswe...

时间:2024-11-13 02:36栏目:行业资料