calling的原型

原型是call，例如：

1、He didn't even have the intelligence to call for an ambulance.他連呼叫救護車的頭腦都沒有。

2、The constable received a distress call， and saw two youths attacking his colleague.這名警察收到了求救呼叫，看見兩個年輕人正在毆打他的同事。