| 单词 | operation |
| 释义 | operation —operation /ˌɒp.ərˈeɪ.ʃən/ aep /ˌɑː.pəˈreɪ-/ noun (WORK) C1 [U] the fact of operating or being active: » There are several reactors of the type in operation (= working) at the moment.» We expect the new scheme for assessing claims to come into operation (= start working) early next year.Thesaurus+: ↑Functioning , ↑Performing a functionF0 [U] the way that parts of a machine or system work together, or the process of making parts of a machine or system work together Thesaurus+: ↑Performing a function , ↑FunctioningC1 [C] a business organization: » Less profitable business operations will have difficulty in finding financial support.Thesaurus+: ↑Businesses and enterprisesC1 [C] an activity that is planned to achieve something: » a military/peacekeeping operation.» Following the earthquake, a large-scale rescue operation was launched.» [+ to infinitive] The operation to fly in supplies will begin as soon as possible.Thesaurus+: ↑Acting and acts , ↑Dealing with things or peopleWord Builder:–Nouns: operation, cooperation, cooperative, operator, operative–Adjectives: operational, operative, cooperative–Verbs: operate, cooperate• • • Extra Examples:» The rescue operation has been complicated by bad weather.» We need to look at the logistics of the whole aid operation.» They mounted a salvage operation after the fire.» Starting your own business can be a risky operation.» They're winding down their operations abroad because they're losing money.noun [C] (UK INFORMAL op) (MEDICAL PROCESS) ► B1 an occasion when a doctor cuts a body for medical reasons in order to repair, remove, or replace an unhealthy or damaged part: » a major/minor/routine operation» an abdominal/cataract/transplant operation» He's got to have an operation on his shoulder.» [+ to infinitive] We will know in a couple of days if the operation to restore her sight was successful.Thesaurus+: ↑Surgery• • • Extra Examples:» The hospital has a two-year waiting list for minor operations.» The child's parents or guardians must give their consent before she has the operation.» After the operation the wound became infected.» The operation involves putting a small tube into your heart.» The operation must be carried out under sterile conditions.noun [C] SPECIALIZED (MATHEMATICS) ► F0 a mathematical process, such as addition, in which one set of numbers is produced from anotherThesaurus+: ↑Calculations and calculating , ↑Addition, subtraction, multiplication and division |
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