https://online2.tingclass.net/lesson/shi0529/0009/9907/699.mp3
https://image.tingclass.net/statics/js/2012
dwell on the past 活在過去，沉溺于往事
Don't dwell on the past. Do something now.
別活在過去，現(xiàn)在開始行動(dòng)起來。
You can't just dwell on the past.
你不能總沉溺于過去。
