mission impossible
noun/ˌmɪʃn ɪmˈpɒsəbl/
/ˌmɪʃn ɪmˈpɑːsəbl/
[countable, uncountable]- a difficult or impossible task
难以完成的任务；不可能完成的任务 - Taking a selfie with the Eiffel tower turns out to be a mission impossible, believe me!
与埃菲尔铁塔自拍是一项不可能完成的任务，相信我！ - Sometimes it feels like mission impossible to keep the children's toys neat and tidy.
有时，让孩子们的玩具保持干净整洁感觉像是一项不可能完成的任务。
- Taking a selfie with the Eiffel tower turns out to be a mission impossible, believe me!