retentive
[rɪˈtɛntɪv]
adj.
（指记忆力）有记性的，记性强的;
能保持或容纳液体等的;
adv.
有记性地，记性强地;
n.
保持力;
顽磁性;
例句:
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Luke had an amazingly retentive memory.
卢克记忆力惊人。
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He is a scholar who has wide learning and a retentive memory.
他是一位博闻强记的学者.
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He has a very retentive memory.
他有非常强的记忆力.
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Mulch the roots with organic matter to keep the soil weed-free and moisture-retentive.
来自THETIMES
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Jay has an anomalous memory, extraordinarily retentive but riddled with hard-to-account-for gaps.
来自NEWYORKER
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These require fertile, moisture retentive soil and will not enjoy the drier summers.
来自BBC