https://online2.tingclass.net/lesson/shi0529/0009/9907/501.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
no-brainer 不用動腦子就知道的事， 明擺著的事情，容易的事情
It is a no-brainer to hire Mike. He is great.
雇傭麥克的時候根本不用考慮，他很棒。
Always staying up late is really not good. That's a no-brainer.
經(jīng)常熬夜很不好，這是明擺著的事情。
