with object To swarm over or across; to cover (a place) with a swarm or profusion of something. Also (occasionally) without object.
Late 16th century (in an earlier sense). From over- + swarm.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。