英语翻译肯定有人帮了她,否则他不可能取得这样的成绩someone must have helped him,or he cannot have made such accomplishment.必须有人去帮他,要不他不能完成任务.some must help him,or he will not complete the mission.

someone must have helped him，or he cannot have made such accomplishment.
some must help him，or he will not complete the mission.
这是对的，你很聪明。这个我们老师讲过

肯定有人帮了她，否则他不可能取得这样的成绩Someone must help her, or he couldn't have made such a achievement
必须有人去帮他，要不他不能完成任务.Must be someone to help him, or he can't finish the task.

对的，差不多吧！看来您英语不错！

你翻译的是对的。

Someone must help her,or he couldn't have made such a achievement.
Must be someone to help him,or he can't finish the task.

1.He must be helped by someone,otherwise he can not make such accomplishment.
2.He can not fulfil the task without others' help.