Four days after setting out,while the Titanic was sailing across the icy water of the North Atlantic这里的setting out为什么要用ing形式呢,是用的什么语法呢 还是说setting out是动名词

Four days! four days before Four days count after Getting lost in a storm, a member of the navy team was rescued four days later 翻译 From the form we know that four days after May Day people are celebratinga festival in China.翻译下 day after four Hours in four days -days in four weeks the sett in fabrics 以before或after引导的状语从句有问!进入帮手例：It will be four days before they come back哪句系主句?哪名是从句? He wanted to take it easy after __shopping. A a days' B 2 hour's C haif an hours' D four hours' Only ____hurt in this province after four days of heavy rains.A.did two persons B.two persons did C.two persons wereD.were two persons four- day holiday是否等于four days' holiday? hours in four days-days in four weeks = 中文意思及英文答案days in four weeks two days after和after two days的区别 two days after和after two days的区别是什么? He will be back in four days I am staying just for four days where--------you four days ago?----------填什么