Luke had an amazingly retentive memory.是什么意思？

Luke had an amazingly retentive memory.

卢克记忆力惊人。

luke

adj. <古>冷淡的；

例句
What on earth had Luke done?...
卢克究竟做了什么？

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；

例句
He started eating an apple...
他开始吃苹果。

amazingly

adv. 令人惊奇地；

例句
Her description of the nature and action of poisons is amazingly accurate.
他对一些毒药的性质和作用的描述惊人地准确。

retentive

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，<物>顽磁性；

例句
Luke had an amazingly retentive memory.
卢克记忆力惊人。

memory

n. 记忆，记忆力，回忆，往事，[计]存储器，内存；

例句
It is the memory and threat of persecution that binds them together.
遭受迫害的记忆和威胁把他们紧紧联系在一起。