弗州高中生开发 App助学生安全步行上学 - 优直播

20261021()20253Daniil ProkofevThomas Jefferson High School for Science and Technology8 GoogleGoogleBraddock Road 15HackTJ24SafeWalkr (107)Fairfax CountyApp Isaac LeetynGoogleSafeWalkrPythonJavaSc… [+95 chars]