youcannotfailtoobeyit.youcan't()todothis

Question

you cannot fail to obey it.you can't () to do this

Answer 1

You cannot fail to obey it.这是一个双重否定表示肯定的句子,翻译为“你一定要遵守它.”cannot 是不能的意思,fail是失败,做不到.
所以改为同义句的话,就用disobey(obey的否定词）,即 You can't disobey to do this.翻译为“你不能不遵守它.”也是“你一定要遵守它.”的意思.