due to the fog it took seven hours (instead of)the usual two to make that journey
问题描述：
due to the fog it took seven hours (instead of)the usual two to make that journey
特别是the usual two to make that journey两个通常的去旅行?
答
因为这个雾,去旅行花费了7个小时而不是2个小时.
意思就是说 本来是2个小时的旅行,由于雾,却花费7个小时.
是 it takes.to do sth 的句型 it took seven hours to make that journeythe usual two是什么意思？是 usual two hours 通常是2小时的旅程 此处省略了hours为什么可以省略hours呢？个人认为是 前面已有hours 为了避免重复而省略 也可能是出题者为了增加难度 而省略