crawl 
词形变化： [crawled]是[crawl]的过去分词形式、过去时形式

英 [krɔːl]  美 [krɔl] 
n. 爬行，匍匐行进；缓慢行进；自由式游泳

v. 爬行，匍匐行进；拍马屁；缓慢行进，艰难前进

例句：
He crawled, slowly, on all fours, through the crowd. 

他四肢着地在人群中慢慢爬行。

Don't worry if your baby seems a little reluctant to crawl or walk. 

如果你的宝宝看起来有点不愿意爬或走，不要担心。

The dying man had crawled a few yards. 

这个垂死的人爬了好几码。

I began to crawl on my hands and knees towards the door. 

我开始手脚并用地朝门口爬去。

There were flies crawling on the ground beneath his feet. 

他脚下的地面上有些苍蝇在爬动。

I watched the moth crawl up the outside of the lampshade. 

我注视着蛾子沿着灯罩的外侧往上爬。