this is a new world to which he must adjust himself 他必须调整自己适应这个新世界 to which是什么用法是不是遇到这种情况介词都要提前 还是可以省略？

3月12日篮球公园的一个插曲,英文的,歌词是this is a new world this is a new start This is a new beginning 求歌it's a new world it s a new start歌词有段是it s a new start it's a new world,this is me just you and me I want a NEW WORLD,lesve this world,to find a new This is a map ____ tehe world. This is a new red jiji This is a new computer什么意思 this is a new car.变复数 This is a new street怎么念 This world is a joke 谁知道This world is a joke this is a new sweater对new sweater提问 this is the day for our two peoples to rise to the heights of greatness which can build a new and better world.请问which can build a new and better world.的先行词是greatness还是heights This World is Cold If this is a dream ,the whole world is inside this is the day for our two peoples to rise to the heights of greatness which can build a new and better world请翻译并分析! this is the new this is new shit 怎么理解这句话呢?尤其是demographic kickSo this technology push,a demographic kick from a new generation and a demand pull from a new economic global environment is causing the world to open up.