operation
/ˌɑ.pəˈɹeɪ.ʃən/ 名词 B1中文： 运营、操作、手术、作战
- The method by which a device performs its function. · It is dangerous to look at the beam of a laser while it is in operation.
- The method or practice by which actions are done.
- The act or process of operating (verb): agency; the exertion of power, physical, mechanical, or moral.
- A planned undertaking. · The police ran an operation to get vagrants off the streets.· The Katrina relief operation was considered botched.
- A business or organization. · We run our operation from a storefront.· They run a multinational produce-supply operation.
- A surgical procedure. · She had an operation to remove her appendix.
- A procedure for generating a value from one or more other values (the operands). · The number of operands associated with an operation is called its arity; an operation of arity 2 is called a binary operation.
- A function which maps zero or more (but typically two) operands to a single output value.
复数 operations
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The thieves had already approached Andrea, some screaming, “La savate—La savate!” a cruel operation, which consists in cuffing a comrade who may have fallen into disgrace, not with an old shoe, but with an iron-heeled one.
She carried out every one of my injunctions to the letter, and certainly without her co-operation you would not have that paper in your coat-pocket.
Adair’s mother had returned from Australia to undergo the operation for cataract, and she, her son Ronald, and her daughter Hilda were living together at 427, Park Lane.
In that case our friend the image-breaker has begun operations in another quarter of London.
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