pilfer
/ˈpɪlfə(r); `pɪlfɚ/ v[I, Ipr, Tn]
~ (sth) (from sb/sth) steal (sth, esp of small value or in small quantities) 偷窃（尤指价值低的或少量的东西）; 小偷小摸
He was caught pilfering. 他行窃当场被抓住.
She had been pilfering from the petty cash for months. 她多月来一直从零用现金中偷钱.