pull-chain operator拉链: zip fastener; zipper操作: operate; manipulate; handle器: implement; utensil; ware顺序链操作: cso chained sequential operation字链操作: word chain operation下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:拉链操作器，即可在微信中查询翻译
