| 单词 | retrieval |
| 释义 | retrieval (once / 28828 pages) n The act of bringing something back is called retrieval. When you throw a tennis ball to Fido and he brings it back to you, that's retrieval. When you lose something and get it back, that's retrieval, whether it's a tote bag you accidentally left at the library or a file you can't find on your computer. In fact, the word retrieval is a common one in computer science, meaning "the act of accessing information." The word comes from the verb retrieve, which was first used in the fifteenth century to describe a hunting dog bringing a dead bird back from a field. WORD FAMILYretrieval: retrievals+/irretrievable: irretrievably/retrievable: irretrievable, unretrievable/retrieve: retrievable, retrieval, retrieved, retriever, retrieves, retrieving/retriever: retrievers USAGE EXAMPLESClot retrieval can restore blood flow to the brain, preventing some lasting damage, but currently only 600 patients a year get this therapy, they estimate. BBC(Nov 28, 2016) It promises a national rebirth, a return to an idealised past and the retrieval of an “authentic” native identity. Economist(Nov 17, 2016) As someone who underwent many IVF cycles, I think these articles wildly overstate the symptoms of stimulation and egg retrieval. New York Times(Oct 20, 2016) 1n the act of regaining or saving something lost (or in danger of becoming lost) Syn|Hypo|Hyper recovery repossession the action of regaining possession (especially the seizure of collateral securing a loan that is in default) reclamationthe recovery of useful substances from waste products deliverance, delivery, rescue, savingrecovery or preservation from loss or danger ransomthe act of freeing from captivity or punishment recapture, retakingthe act of taking something back lifesavingsaving the lives of drowning persons redemption, salvation(theology) the act of delivering from sin or saving from evil reclamation, reformationrescuing from error and returning to a rightful course salvagethe act of rescuing a ship or its crew or its cargo from a shipwreck or a fire salvagethe act of saving goods or property that were in danger of damage or destruction salvationsaving someone or something from harm or from an unpleasant situation search and rescue missiona rescue mission to search for survivors and to rescue them act, deed, human action, human activity something that people do or cause to happen 2n the cognitive operation of accessing information in memory my retrieval of people's names is very poor Hyper memory, remembering the cognitive processes whereby past experience is remembered 3n (computer science) the operation of accessing information from the computer's memory Hypo|Hyper stovepiping retrieval of information from unconnected databases; the situation that exists when it is necessary to climb out of one database in order to climb down into another; sometimes used for protection against wandering hackers computer operation, machine operation an elementary operation that a computer is designed and built to perform |
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