核心问题
查英汉词典,得知 whilst = while。但不知它们有无区别。
词典解答
whilst 主要用于英国英语,而且没有 while 用得那么广泛。连词 whilst 可引导时间状语从句、让步状语从句和对比从句：
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I didn't want to live at home whilst I was at university. (EED) 在我读大学的时候,不愿意住在家里。
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Whilst these cars are economical at a steady 56 mph, they perform badly in traffic. (EED) 尽管这些汽车在稳定的每小时 56 英里的速度上是省油的，但它们实际运行时性能却很糟。
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My brother bought his camera from a friend, whilst I bought mine from a shop. (RBE) 我兄弟的照相机是从一个朋友手里买来的，而我的照相机却是从商店买来的。
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Secondly, we note that in the first and third cases the phenomena were very slight and might easily have escaped notice, whilst in the second case they produced a negative result. (CBSE) 其次我们注意到，在第一例和第三例中，那些现象是微不足道的，非常容易被忽视，而在第二例中则产生了否定的结果。