retention

retentions 是 retention 的复数形式，页面展示原形释义。

英 [rɪˈten.ʃən] 美 [rɪˈten.ʃən]

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CET6 TEM8 考研 GRE 雅思

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记忆方法

1. re- "back" + tent- + -ion.
2. => hold back, keep back.
3. => continue keeping, keep possession of, keep in the mind.

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词形变化与派生词，串起来记

词形变化

retentions复数形式

派生词

retentive retain

retention 保持，保留，记忆力

来自 retain,保持，-ion,名词后缀。引申词义记忆力。

retention (n.): late 14c., from Latin retentionem (nominative retentio) "a retaining, a holding back," noun of action from past participle stem of retinere (see retain). Originally medical; mental sense is from late 15c.

1. He argues strongly for retention of NATO as a guarantee of peace.: 他强烈要求保留北大西洋公约组织以维护和平。

2. They supported the retention of a strong central government.: 他们赞成保留一个强大的中央政府。

3. The company needs to improve its training and retention of staff.: 公司需要改进对员工的培训和留用工作。

5. RETENTION parameter works best if the current undo tablespace has enough space for the active transactions.: retention能做好地工作如果----当前的回滚表空间对活动事务有足够的空间.

retention of activity retention of afterbirth retention of class retention of color retention of configuration retention of configurations retention of faeces retention of food retention of lubricity retention of meconium retention of memory retention of menses retention of ownership retention of phosphates retention of placenta retention of placeta retention of profits retention of records retention of urine