operator

名词 operator:

1. (mathematics) a symbol that represents a function from functions to functions
2. an agent that operates some apparatus or machine
   同义词：manipulator
3. someone who owns or operates a business
4. a shrewd or unscrupulous person who knows how to circumvent difficulties
   同义词：hustler, wheeler dealer
5. a speculator who trades aggressively on stock or commodity markets

1. Ring the operator and ask for Freefone 8921.
   接通接线生，然後要免费通话8921号。
2. The radio operator sent (out) an appeal for help to headquarters.
   无线电报务员向司令部发出求救信号。
3. Operator, I've just been cut off.'
   ｀话务员，线路断了.＇
4. Dial 100 for the operator.
   拨100找接线员。
5. I am a computer operator.
   我是一名计算机操作人员。

op.er.a.tor

n.（名词）
One who operates a machine or device:
操作员：操作机器或设备的人：
例句：
a switchboard operator.
交换操作者

The owner or manager of a business or an industrial enterprise.
管理者：（工商企业的）经营者或负责人
One who deals aggressively in stocks or commodities.
（在股市、商业界）积极交易的人
Informal A person who is adept at accomplishing goals through shrewd or unscrupulous maneuvers.
【非正式用语】 以计谋来达到目的的人
Mathematics A symbol, such as a plus sign, that represents an operation.
【数学】 运算符号：用来进行运算的符号，如加号
A chromosomal segment of DNA that regulates the activity of the structural genes of an operon by interacting with a specific repressor.
DNA中的染色体元素：DNA中的染色体，它是通过与一特殊的约束因子相互作用而控制遗传子结构基因的行为