loose-leaf; leaflet◇活页笔记本 loose-leaf notebook; 活页夹 loose-leaf binder; spring binder; 活页文选 loose-leaf; 活页纸 paper for a loose-leaf notebook活页薄: ring book活页本: loose-leaf notebook; pad of paper for writing or drawing on活页簿: loose-leaf book活页的: loose-leaf活页阀: change valve; changeover valve下载手机词典可随时随地查词查翻译