adj.丛生的，群集的；成群的；v.使集中(cluster的过去式和过去式)；聚合； 双语释义：n.(名词)[C](果实、花等的)串,簇 a number of things of the same kind growing or being close together in a group[C](人、物等的)群,组 a group of people or sthv.(动词)vt. & vi. (使)群集,集中 (cause to) gather or grow in one or more clus