1．crawl英[krɔːl]美[krɔːl]，vi.(昆虫)爬行; 爬行; 爬; 匍匐行进; 缓慢行进;n.爬泳; 缓慢的速度; 自由泳。
2．[例句]It looked wide enough for him to crawl though.这宽度看起来足够他爬行通过。
