我们都记得《周末夜狂热》约翰·特拉沃尔塔空中的手臂。
We all remember John Travolta's arm in the air in Saturday Night Fever.
你不需要一夜之间变成狂热分子，但是你必须在这个领域消息灵通。
You don't have to turn into an overnight fanatic, but you do need to become reasonably well-informed about the area.
然后，到了七0年代末期，约翰·屈伏塔主演《周末夜狂热》。
Then, at the end of the 70s, Travolta starred in Saturday Night Fever.
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