剑桥词典the activity , often done secretly, of covering parts of buildings , etc. with decorative items that have been knitted , as a form of art 针织涂鸦,毛线大爆炸(一种街头艺术活动,用各色毛线编织的物品偷偷覆盖建筑物的一些部分) 返回 yarn bombing