duplicate

将“duplicate”拆分为“dupli”和“cate”。想象自己重复（dupli）做同样的动作（cate），就像复印机一样复制（duplicate）出一样的文档。通过这样的动作关联，可以帮助记忆“duplicate”这个单词的意思是复制或复制物。

duplicate 复制

du-，二。-plic, 折，词源同fold, complicate. 即两折，引申义复制。

duplicate

duplicate: [15] Like its close relative double, duplicate comes ultimately from Latin duplus ‘two-fold’, a compound adjective based on Latin duo ‘two’ and an Indo-European element *plwhich denoted ‘folding’ (it is present also in English fold and ply). English acquired this in the 16th century, and its synonym duplex (based on the extended stem *plic-) in the 19th century. In Latin, duplus formed the basis of a verb duplicāre ‘make twofold, double’, from whose past participle English gets duplicate, while duplex has given us duplicity [15].
=> double, duplicity, fold, ply, two

duplicate (adj.)

mid-15c., "having two parts, double," from Latin duplicatus, past participle of duplicare "to double," from duo "two" (see two) + plicare "to fold" see ply (v.1)). Meaning "exactly corresponding, that is an exact copy of" is from 1812.

duplicate (v.)

1620s, "to double," from Latin duplicatus, past participle of duplicare (see duplicate (adj.)). Meaning "make an exact copy" is from 1640s (implied in duplicated). Related: Duplicating. The noun is first recorded 1530s.

1. Charles scored again, with an exact duplicate of his first goal.

查尔斯再次得分,与第一次破门如出一辙.

2. His task will be to duplicate his success overseas here at home.

他在海外取得了成功，现在的任务就是要在国内再创辉煌。

3. He let himself in with a duplicate key.

他用一把复制的钥匙打开门进去。

4. The manager asks the secretary to duplicate the document.

经理让秘书复印这份文件.

5. Your jacket's a duplicate of mine.

你的夹克跟我的一样.

【model, facsimile, duplicate, reproduction, copy】
这组词都有“复制品”的意思，其区别是：
model: 可指按某物式样制造、按比例缩小的模型，也可指某物未制成之前做出的模型。
facsimile: 含义与copy大体相同，但较文雅。
duplicate: 常指完全一模一样，可代替原件的复制品。
reproduction: 批按原物复制的产品，着重复制品与原物相似。
copy: 普通用词，含义广泛，指精确的或不精确的复制品。

【duplicate, xerox, copy】
这组词都有“复印、复制”的意思，其区别是：
duplicate: 指对原件进行复制或复印，侧重结果与原件一模一样。
xerox: 指用静电复印或用静电印刷术复制。
copy: 着重模仿者的有意识行为或模仿得尽可能接近原件。