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1·Luke had an amazingly retentive memory.

卢克记忆力惊人。《柯林斯英汉双解大词典》

2·He has a very retentive memory.

他的记忆力非常好。

3·The retentive price set by the trustee;

委托人提出的保留价；

4·Is good intention affection how retentive?

好心情是怎么样保持的？

5·The new material invented is retentive to water.

新开发的材料有很好的保水性。

6·Pale ink is better than the most retentive memory.

暗淡的墨水比最好的记忆好多了。

7·The memory of Mei is always retentive keeping in my mind.

关于玫的记忆保持不散，一直在我的脑海中。

8·Very different Retentive force was found in different designed retainers.

不同的磁性固位体设计形式所产生的固位力不同。

9·The result shows that zinc phosphate cement is the most retentive cement.

结果表明，磷酸锌粘固剂所获粘接力最大。

10·If you have a retentive memory, you are able to remember things very well.

如果你记性好，你就能很好地记住事情。

保持的

1·Both of the timer LOGO! and STEP7 have the function of on-delay, off-delay, retentive on-delay and edge-triggered interval time-delay. LOGO!

和STEP7的定时器都具有接通延时、断开延时、保持接通延时、边缘触发延时和脉冲输出功能，LOGO！

2·Is good intention affection how retentive?

好心情是怎么样保持的？