when reports came into London zoo that a wild puma had been spotted forty-five miles away .

问题描述:

when reports came into London zoo that a wild puma had been spotted forty-five miles away .
书上的翻译是:当伦敦动物园接到报告说...
came into 在这里是什么成分?

成分分析:when reports主语 came谓语 into London zoo状语
直译:当消息来到伦敦动物园时.