The call operator is a pair of parentheses that encloses a (possibly empty) list of arguments that we pass to the function.

调用操作符是一对圆括号，括住传递给函数的实参列表（可能为空）。

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On hearing we were located on a beach in Sierra Leone the call operator said "we have a service centre in Puerto Rico. Is that close?"

听说我们是在塞拉利昂海滩上，接线员说，“我们在波多黎各有服务中心，离你们近吗？”

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We execute a member function in much the same way as we do any function: To call a function, we follow the function name by the call operator (the "()" operator).

执行成员函数和执行其他函数相似：要调用函数，可将调用操作符（（））放在函数名之后。

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People use a metal call box with a push-to-talk button to connect to a live operator, as Rose Shuman explains: "You just push a button, a big green button, and that will connect you directly to our operators who are sitting in front of computers, and speak your language.

VOA: special.2009.10.12

She told the call operator that her son was not breathing and had been sick all day.

BBC: Mother charged with killing son

Despite desperate pleas of the call center operator, the nurse refuses to do CPR and the resident dies.

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Indeed, in 2006 an Indian call-centre operator opened a new centre in Northern Ireland.

ECONOMIST: s argue that offshoring is a win-win phenomenon