adjective, verb · bound form used in 忙碌 máng​lù (busy), 劳碌 láo​lù (toil), 庸碌 yōng​lù (mediocre), etc.

他整天都在为生活劳碌，很少有时间休息。

adjective, proper name · Used in the compound 碌碡 liù​zhou referring to a stone roller used for threshing grain or leveling ground.

农夫拉着碌碡在麦场上碾麦子。