knuckled的音标？

He knuckled me in the chest.他用指关节敲击我的胸部.Mr. Cruncher knuckled his forehead, as Sydney Carton and the spy returned from the dark room.克朗彻先生用指关节敲敲自己的前额, 这时西德尼-卡尔顿和密探从黑屋出来了.The boy knuckled down took aim and shot for the ce...

v.（指人）指关节( knuckle的过去式和过去分词 )，（指动物）膝关节，踝...