https://online2.tingclass.net/lesson/shi0529/0009/9907/357.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
cold feet 膽怯，打退堂鼓，信心或勇氣的喪失
He planned to talk to Mary, but then he got cold feet.
他本打算去跟Mary說話，但后來臨陣退縮了。
This is not the time to get cold feet. Let's do it!
現(xiàn)在不是打退堂鼓的時候，行動吧!
瘋狂練習吧!
