operation /ˌɒpəˈreɪʃən/ star5 CET4 TEM4 (operations)

• 1.  

  N-COUNT（可数名词） An operation is a highly organized activity that involves many people doing different things. 行动

  例：

  The rescue operation began on Friday afternoon.

  营救行动星期五下午展开。

• 2.  

  N-COUNT（可数名词） A business or company can be referred to as an operation. 公司 [商业]

  例：

  Thorn's electronics operation employs around 5,000 people.

  索恩的电子公司雇佣了大约五千名员工。

• 3.  

  N-COUNT（可数名词） When a patient has an operation, a surgeon cuts open their body in order to remove, replace, or repair a diseased or damaged part. 手术

  例：

  Charles was at the clinic recovering from an operation on his arm.

  查尔斯在诊所，进行手臂的术后恢复。

• 4.  

  N-UNCOUNT（不可数名词） If a system is in operation, it is being used. 实施中

  例：

  ...the free banking system that has been in operation since the early eighties.

  …从80年代初就开始实施的自由银行制度。

• 5.  

  N-UNCOUNT（不可数名词） If a machine or device is in operation, it is working. 运转中

  例：

  There are three ski lifts in operation.

  有3辆滑雪缆车在运行。

• 6.  

  （） → see also operative
• 7.  

  PHRASE（习语） When a rule, system, or plan comes into operation or you put it into operation, you begin to use it. 开始实施

  例：

  The Financial Services Act came into operation four years ago.

  《金融服务法》4年前开始生效。