operation
UK/.ɒpә'reiʃәn/US
NGSL 1kB1
Definitions
n.
The way something works or functions; the state of being in action.
运转，运行；工作状态。
n.
A surgical procedure performed on the body.
外科手术。
n.
A planned, organized activity, especially a military or business one.
（有计划的）行动；军事行动；业务运营。
n.
A mathematical process such as addition or multiplication.
（数学）运算。
Root Breakdown
Root-derivedoper (work) + -ation (act, process) = 'the carrying out of work.' Every sense is just 'a piece of work being done': a machine in operation, a military operation, a math operation, a heart operation. They look unrelated but share one root idea — purposeful work in progress.
Root oper still carries 16 more wordsCommon Collocations
- 1.in operation运行中
- 2.military operation军事行动
- 3.surgical operation外科手术
- 4.rescue operation救援行动
Example Sentences
- 1.
The new subway line is now in full operation.
- 2.
She is recovering well after the operation.
- 3.
Police launched a major operation against the gang.
- 4.
Addition is the first operation children learn.