re·ten·tive /-ˈtɛntɪv/
(a.)保持的,有保持力的,記性好的
re·ten·tive /rɪˈtɛntɪv/ 形容詞
Re·ten·tive a. Having power to retain; as, a retentive memory.
Nor airless dungeon, nor strong links of iron,
Can be retentive to the strength of spirit. --Shak.
Re·ten·tive, n. That which retains or confines; a restraint. [R.]
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retentive
adj : tending to retain; "a retentive memory"; "soils retentive of
moisture" [ant: unretentive]