duplicate

• 指某物是另一物的完全相同的复制品或副本；也指重复的、额外的或一模一样的。

Describes something that is an exact copy or replica of something else.

1. Identical copyB1formal

   Being exactly the same as something else; made as a copy.

   副本

   • Please keep a duplicate key in a safe place.
   • The duplicate file was saved on the backup drive.
   • He submitted a duplicate application by mistake.

   同义词copycorrespondingdoubleexactidenticalmatchingtwin

   反义词differentdistinctoriginal

2. Double or repeatedB2formal

   Existing in two identical parts; repeated.

   重复的

   • The duplicate entries in the database caused confusion.
   • We found duplicate records in the system.
   • The duplicate copies of the document were sent to different departments.

   同义词doubledoubledmatchingpairedrepeatedtwintwofold

   反义词singleunique

• 指与某物完全相同的复制品或副本，常用于文件、物品或数据文件等；也可指极为相似的人或物。

A noun referring to an exact copy or replica of something, often an original document, object, or file.

1. B1formal

   An exact copy of something, such as a document, object, or file.

   副本

   • Please make a duplicate of the contract for our records.
   • The key is a duplicate of the original.
   • He kept a duplicate of the report in his safe.

   同义词carbon copyclonecopydoublefacsimilematchreplicareproductiontwin

   反义词original

2. Second identical itemB1formal

   One of two or more identical things, often used as a backup.

   副本

   • She had a duplicate of her passport in case of loss.
   • The artist painted a duplicate of the famous portrait.
   • We have a duplicate of the software installation disc.

   同义词carbon copyclonecopycounterpartdoublefacsimilematchreplicatwin

   反义词originalprototype

• 动词，指制作某物的精确副本，或重复进行某事。

A verb used to indicate the act of making an exact copy of something or doing something again.

1. Copy exactlyB1formal

   To make an exact copy of something.

   复制

   • Please duplicate the key for the new employee.
   • The artist duplicated the painting with incredible accuracy.
   • We need to duplicate the report for all team members.

   同义词clonecopyphotocopyreplicatereproduce

   反义词createinventoriginate

2. Repeat or replicateB2formal

   To do something again in the same way.

   重复

   • The team hopes to duplicate their success from last year.
   • She duplicated the experiment to verify the results.
   • It is difficult to duplicate such a unique performance.

   同义词copyredorepeatreplicatereproduce