at which point用于引导定语从句,其意为“就在这时”“就在那时”等,在许多情况下相当于 and at that (this) moment。如:He lost his temper, at which point I decided to go home. 他发脾气了,这时我就决定回家了 地点名词后当然可以接where引导的定语从句,但是有一些名词本身并不表示地点,而是表示“情况,方面”等,其后也可以接where引导的定语从句,这类名词常见的有point, case, situation, condition, job 等。这种用法中的where相当于under which, from which 等,意为“在这种情况下,从……...
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