Then, on Sunday, August 15, 1971, President Nixon went on television to announce that the U.S. would renege on its promise to allow dollars to be turned in for gold, which led the dollar to plummet.
renege on 違背
plummet 暴跌
You better make sense of what happened to other people in other times and other places because if you don’t you won’t know if these things can happen to you and, if they do, you won’t know how to deal with them.
if they do這里不知道怎么翻譯， 三個if放一塊有點懵。
你最好清楚別人在其他時間，其他地點發生了什么，因為不知道如果這些事發生在你身上，。。。。。你不知道你會如何解決他們。
Then we gathered in groups to thrash out what we would do if we were in the shoes of the people in those situations.
thrash out 討論
