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保留率；（承租人的）留购率；继续服役率，服役期满不退役的比例
1、customer retention───客户保留；顾客维系
2、rates───n.价格；[数]比率；等级（rate的复数形式）；n.(Rates)人名；(西)拉特斯；v.认为，看做（rate的第三人称单数形式）；评估；给…估价
3、bested rates───最佳汇率
4、retention force───保持力
5、retention policy───[经] 自留责任保险；自留责任保险单
6、retention plan───保留计划；挽留计划
7、retention───n.保留；扣留，滞留；记忆力；闭尿
8、employee retention───员工留任
9、fluid retention───[医]液体潴留
1、You pay for information about graduation and retention rates, specific majors, career opportunities, computer resources, and much more.───你领取的用度能为你带来学校的毕业及留校率，具体专业的状况，失业状况，校内的计算机资源等等。
2、Retention rates foronline companies vary widely too.───在线公司的客户保持率也相差很大。
3、Retention rates are on the high side, too, with approximately 70% of users remaining active after first usage.───目前的活跃用户比例也很高，大约为70%。
4、Salaries have been slashed, and stingy retirement benefits have undercut retention rates.───薪金锐减和吝啬的退休金导致留任率的走低。
5、When retention rates improved to a certain extent, the site was with a certain scale.───当回头率提升到一定程度，站点就具备了一定得规模。
6、Retention rates are nearly 100% (drop-outs are exceptional), but only 58% of participants stay for the maximum period.───保留率接近100%（放弃者属于例外），但只有58%的参与者停留到了设定的最长时间。
7、Retention rates and recruitment standards are going down.───复员率上升，征兵标准则在下调。
8、Even so, the accountant's goals are more nuanced than simply increasing retention rates.───尽管如此，会计事务所的目标却不只是提高员工保持率那么简单。
9、Recruitment and retention rates have risen.───招聘和留任率都有所上升。
1、By using panel survey methods, the recruitment and retention rates of members can be tracked over time.
2、A.. Watch customer loyalty, retention rates, share of purchases.
3、The retention rates of Albumin bovine decreases when coagulation bath temperature increases, and first decreases, then increases when pre-evaporation time prolongs.