spoke
n
1 any of the bars or wire rods that connect the centre (hub) of a wheel to its outer edge (rim), eg on a bicycle 辐条. =>illus at App 1 见附录1插图, page xiii.
2 (idm 习语) put a `spoke in sb´s wheel (Brit) prevent sb from carrying out his plans 阻挠某人的计画. spoke, pt of speak.