1930s. Shortened from percolator. Compare earlier perk.
1930s; earliest use found in American Speech. Shortened from percolated. Compare earlier perk and perc.
1940s; earliest use found in The New York Times. Shortened from perchloroethylene.
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。