it took him four and a half years to walk around the world 改为同义句
问题描述：
it took him four and a half years to walk around the world 改为同义句
答
it took him four and a half years to walk around the world 改为同义句:
1,Walking around the world cost him four and a half years.
2,It was four and a half years for him to walk around the world.
3,He spent four and a half years walking around the world.