Alas! with all her reasoning, she found, that to retentive feelings eight years may be little more than nothing.

唉！ 她尽管这样开导自己，却还是发现：对于执着的感情来说，八年可能是无足轻重的。

We use SMS because it is retentive.

我们使用 SMS， 因为它有忆力。

Another study from the University of Montreal found that musicians are on average more mentally alert and retentive in comparison to people who can't play an instrument.

利尔大的另一项研究发现，与不会演奏乐器的人相比，音乐家一般思维更敏捷，忆力更强。

He had a more varied knowledge than the greater part of undergraduates, and, having at the same time a retentive memory and considerable quickness, he was able to assume an attitude of omniscience which was as impressive as it was irritating.

他的知识比大多数本科生都丰富，同时忆力强，反应敏捷，他能够表现出一种无所不知的态度，既令人印象深刻又令人恼火。