chock/tʃɔk; tʃɑk/ nblock or wedge used to prevent a wheel, barrel, door, etc, from moving (用以防止轮子、 桶、 门等移动的)垫块. chock, v [Tn]wedge (sth) with a chock or chocks 用垫块塞住(某物).
牛津英汉双解词典