jimmy吉米吉米
long before与before long的区别如下：long before意为很久以前 而before long意为不久以后（即你所问的“没过多久”的意思）。例：Long before，this village is the trade centre of the nearby areas. 很久以前，这座村庄是当地的商贸中心。The sky turned dark suddenly, before long, fat drops of rain followed.天突然暗了下来，不久就下起了瓢泼大雨。
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