https://online2.tingclass.net/lesson/shi0529/0009/9907/127.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
down 失意，低谷，挫敗
Life is full of ups and downs.
人生充滿著起起伏伏。
He went through a lot of ups and downs.
他經(jīng)歷了很多起起伏伏。
you look so down today, are you ok?
你今天看起來情緒很低落啊，你還好嗎?
瘋狂練習(xí)吧!
