骨碌

骨碌	gū lu	to roll rapidly; to spin / Taiwan pr. [gu2lu5]
骨	gū	used in 骨碌碌 / used in 骨碌
骨	gǔ	bone
碌	liù	used in 碌碡 / Taiwan pr. [lu4]
碌	lù	(bound form used in 忙碌, 劳碌, 庸碌 etc)
碌	liù	variant of 碌