catwalk        
noun [ C ] uk/ˈkæt.wɔːk/ us/ˈkæt.wɑːk/
 (时装表演时模特走的)T形台,展示台
the long, narrow stage that models walk along in a fashion show
  临时脚手架
a narrow path, raised above the ground, often built for workers to walk on outside a building that is being built or repaired