collectionsn.收集；收藏名词collection的复数形式.collectionn.收集；收取，托收；聚集；收藏品；募捐collection weeding藏书剔除collection expense收帐费用collection on bill[法] 票据托收collection of fees收费collection culture收藏文化collection periods采收期collection network回收网络collection checking馆藏清点collection schedule收款明细单collection approval[经] 核准征税