手机进入recovery后出现的英文字母： Android system recovery volume up/down to movehightlight enter button toselect reboot system now apply update from ADB apply update from internal sdcard apply update from external sdcard apply update apps with system from in_ sdcard apply update apps with system from ex_sdcard wipe data/factory reset wipe cache partition apply apps .zip from internal sdcard apply apps .zip from external sdcard backup user data restore user data is root or not 请大神们帮帮忙，翻译一下，选哪个才能刷root（系统升级包）