Question

麻烦帮忙分析一下句子结构，谢谢～

update requires a reboot, please ensure that your phone has been plugged in or is fully charged.

Answer 1

这是两个句子：
1 前一个句子是主谓宾：
update是主语， requires是谓语动词， a reboot是宾语
2 后一个是祈使句：
及物动词ensure后面接的是宾语从句that your phone has been plugged in or is fully charged.
在此宾语从句中，your phone是主语， has been plugged in是谓语动词，是现在完成时的被动语态；is charged是第二个谓语动词， fully作状语修饰动词charged

Answer 2

译为：更新需要重启，请确保你的手机已在充电或者已经充满电
update 主语
requires 谓语
reboot 宾语
please后面是祈使句

Answer 3

建议分成两句话。
Update主 requires要求 a reboot宾语. Please ensure谓 that your phone has been plugged in or is fully charged宾语从句.
that your phone主语 has been plugged in谓 or is fully charged并列谓
更新需要重新启动，请确保您的手机已插入或充满电。