Ⅰ ❶ (阻止车轮滾动的木头) a piece of wood serving as a brake to halt a carriage ❷ [书] (车轮) wheel Ⅱ [书] (停止, 阻止) block; obstruct Ⅲ [书] ❶ (牢固) firm; secure ❷ (柔弱) weak; delicate ❸ (懒散) sluggish; negligent; indolent Ⅳ [书] (古代长度单位, 八尺) an ancient measure of length equal to eight chi