【自制*听力材料重复】（跟艾伦一起学英语）21.9.13期

【复习】

to determine the cause or source of sth=

or solve the mystery of sth=

get to the bottom of sth

to be the first one to address or publicize an issue, often a news story

break the/a story

弊大于利

do more harm than good

adj. having a lot of problems

troubled

troubled+n

troubled marriage

live in troubled times 生逢乱世

slow down or stop sth one is doing=

hit the brakes on sth

踩刹车

hit the brakes