operationKK [ˏɑpɚˋeʃən] /ˌɑpɚˈeɪʃən/发音名词1手术医学She needs an operation on her left knee next month.她下个月左膝需要动手术。2行动、任务The rescue operation lasted three days in freezing weather.这场救援行动在酷寒天气中持续了三天。3运作、运转The new safety rules came into operation last week.新的安全规定上周开始生效运作。4业务、企业、营运They run a small farming operation in the south.他们在南部经营一家小型农业事业。5操作、使用The manual explains the operation of the machine step by step.手册逐步说明这台机器的操作方式。6运算数学、电脑This program performs millions of operations every second.这个程式每秒能执行数百万次运算。用这个字练口说→