在以风景如画和秩序井然著称的加拿大，失控的野火引发了举国焦虑。在一个国土庞大而权力分散的国家，消防工作由省级管理，野火令消防资源紧张，并在全球变暖加剧野火季的情况下，使协调工作变得更加困难。

NFL (National Football League) clubs voted on Tuesday at the Spring League Meeting in Eagan, Minnesota to permit NFL players ...

NEW YORK, May 13 (Xinhua) -- UnitedHealth CEO Andrew Witty is stepping down for personal reasons as the largest health insurer in the United States suspended its full-year financial outlook due to ...