Answer，在线教育对学生来说是一个有用的工具。Translation，Onlineeducationisausefultoolforstudents。Explanation，Onlineeducationreferstotheuseofdigitaltechnologiestodelivereducationalmaterials，activities，andlearningresourceviatheinternet，whichcanbeusedbystudentsasatooltolearn。Expansion，Withtherapiddevelopmentoftechnology，onlineeducationhasbecomeanirreplaceablepartofmoderneducation。Itnotonlyprovidesstudentswithmoreconvenienceandflexibility，butalsoopensupnewpossibilitiesforlearninganytimeandanywhere，makingiteasierforstudentstolearnandobtainknowledge。