operation

• 名词，指为达到某种结果而进行的过程、行动或一系列行动，常用于医学、商业或技术等语境。

A noun referring to a process, action, or series of actions performed to achieve a specific result, often in contexts such as medicine, business, or technology.

1. Medical procedureB1formalmedical

   A surgical procedure performed on a patient to treat or diagnose a condition.

   手术

   • The surgeon performed a successful operation on her heart.
   • He is recovering well after the operation.
   • The operation lasted for three hours.

   同义词proceduresurgerysurgical procedure

2. Functioning or workingB1formal

   The state of being active or functioning.

   运行

   • The factory is now in full operation.
   • The machine is in operation 24 hours a day.
   • The system is ready for operation.

   同义词actionfunctioningperformancerunningworking

3. Business activityB2formalbusiness

   An organized activity or series of activities carried out by a business or organization.

   经营活动

   • The company's operations have expanded overseas.
   • They are reviewing their business operations to improve efficiency.
   • The operation of the new branch will begin next month.

   同义词activitybusinesscompanyconcernenterprisefirmproceedingtransactionundertakingventure

4. B2formal

   A planned military action or mission.

   军事行动

   • The military launched a covert operation at dawn.
   • The operation was successful in capturing the target.
   • The general planned the operation carefully.

   同义词campaignmaneuvermissionoffensivestrike