Question

duplicate 【duplicate】adj.完全相同的；副的We have a duplicate key to the front door.我们有一把开前门用的相同的钥匙。

Accepted Answer

['duːplɪkət] 
duplicatea copy that corresponds to an original exactly
Duplicate describes something that's an exact copy. If you tend to accidentally lock yourself out of your car, it's a good idea to carry a duplicate key with you just in case.
The word duplicate is useful when you're talking about a copy of something, like a duplicate of your birth certificate that you keep in a file, or a duplicate driver's license that you apply for after losing the original one. The verb duplicate is pronounced differently, with a long a sound, and it means to make a copy of or to multiply times two. The Latin root, duplicatus, means "to double."
All forms of 'duplicate' will appear on average once every 1078 pages.duplicabilityduplicableduplicatableduplicateduplicationduplicatorreduplicatereduplication

Front	duplicate
Pron	['duːplɪkət]
Back	【duplicate】 adj.完全相同的；副的 We have a duplicate key to the front door. 我们有一把开前门用的相同的钥匙。
Vocab	duplicatea copy that corresponds to an original exactly Duplicate describes something that's an exact copy. If you tend to accidentally lock yourself out of your car, it's a good idea to carry a duplicate key with you just in case. The word duplicate is useful when you're talking about a copy of something, like a duplicate of your birth certificate that you keep in a file, or a duplicate driver's license that you apply for after losing the original one. The verb duplicate is pronounced differently, with a long a sound, and it means to make a copy of or to multiply times two. The Latin root, duplicatus, means "to double." All forms of 'duplicate' will appear on average once every 1078 pages. duplicability duplicable duplicatable duplicate duplication duplicator reduplicate reduplication

Duplicate Copy Key Original Means Duːplɪkət Adj.完全相同的；副的 Front