roll up

动词 roll up:

1. form into a cylinder by rolling
   同义词：furl
2. get or gather together
   同义词：collect, accumulate, pile up, amass, compile, hoard
3. arrive in a vehicle: "He rolled up in a black Mercedes"
4. make into a bundle
   同义词：bundle, bundle up
5. form a cylinder by rolling
   同义词：wrap up
6. show certain properties when being rolled
   同义词：roll

1. The hedgehog rolled up into a spiky ball.
   刺　卷起身子成了一个刺球。
2. If you want to be successful you must roll up your sleeves.
   如果你想成功，你必须准备做艰苦的工作。
3. Michael rolled up half an hour earlier.
   万克尔提前半小时到达。
4. He rolled up his sleeves and got to work in the garden.
   他卷起了袖子，在花园里干起活来。