tread board

例句：

1. 1. The gymnastics team uses a tread board for their warm-up routines.
   体操队使用踏步板进行热身训练。
2. 2. The elderly man enjoys walking on the tread board in his backyard garden.
   这位老人喜欢在后院的花园里走在踏步板上。
3. 3.During the winter break, many students use the tread board to exercise indoors.
   寒假期间，许多学生使用踏步板在室内锻炼。