| 单词 | operation |
| 释义 | operationoperation /ˌɑpəˈreɪʃən/ ●●● S3 W1 noun 1MEDICAL [countable] medicine the process of cutting into someone’s body to repair or remove a part that is damaged: She’s going into the hospital for a heart operation.operation on Dan had an operation on his left hip. It took three hours for doctors to perform the operation.2BUSINESS a)[countable] a business, company, or organization, especially one with many parts: He runs a profitable data storage operation. b)[countable, uncountable] the work or activities done by a business, organization, etc., or the process of doing this work: Many small businesses fail in the first year of operation. She handles the company’s day-to-day operations.in operation The chain has over 200 stores in operation. c)operations [plural] the part of a business or organization that controls the planning and practical running of its work: Kessler was made the director of operations last year.3PLANNED ACTIONS [countable] a set of planned actions, especially done by a large group of people, to achieve a particular purpose: The president himself oversaw the military operation. Authorities launched a rescue operation to save passengers from the ship. The UN peacekeeping operation has not been entirely successful. The FBI conducted an undercover operation to catch the terrorists.4MACHINE/EQUIPMENT [uncountable] the way the parts of a machine or piece of equipment work together, or the process of making a machine work: The device has a single button, allowing for easy operation.in operation Only 7 of the 17 furnaces are in operation.5PRINCIPLE/LAW/PLAN ETC. [uncountable] the way that something such as a law, system, or process works and has an effect: in operation This is a a clear example of the law of gravity in operation. The U.S. Parcel Post system first went into operation in 1913 (=started operating).6COMPUTERS [countable] computers an action done by a computer: The new chip can process millions of operations per second.7MATH [countable] math an action of adding, multiplying, dividing, etc. numbersCOLLOCATIONSverbshave an operation (also undergo an operation formal) Harris underwent a hip operation in October.do an operation/carry out an operation (also perform an operation formal) The operation was carried out by a team of surgeons at Mt. Sinai Hospital.recover from an operation A man is recovering from an emergency operation after his dog attacked him.survive an operation The surgeon warned that the patient might not survive the operation.adjectives/nouns + operationa knee/heart/stomach etc. operation He is almost back to normal after a knee operation.a major operation The unit cares for patients recovering from major operations.a minor operation It was just a minor operation, and I was in and out of the hospital in a day.an emergency operation He had to have his appendix removed in an emergency operation.a routine operation (=an operation that is often performed) A hip replacement is now a routine operation.a successful operation The operation was successful and he should make a complete recovery.a life-saving operation The child underwent a life-saving operation to remove a blockage in her stomach.a transplant operation He is too weak to undergo a transplant operation. |
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