这句中"发生"是最简单但最容易表达错的,往往望文生义译成 takeplace occur "发生:意味着"产生"和"繁荣"两个含义 一个"come into being" 一个"flourish" ,而且,还强调 "在大河流域"因此: Why was it in the river basins that the ancient civilizations came into...
Why did ancient civilization mostly take place in regions near big river basins? Why did it take place for most ancient civilization in regions(areas) near big river basins? 注意:这里“发生”,用take ...