今天我们要学的词是 break out. To break out 有突然爆发的意思，一般都是过去时的形态，broke out。A fight broke out outside the bar. 酒吧外面有人大打出手。Several parts of Yosemite National Park were closed after a wildfire broke out. 由于野火的影响，美国的优胜美地国家公园部分地区停止对公众开放。A street riot broke out after the U.S. Surfing Open  in California. 在加州举行的美国冲浪公开赛结束后，街头爆发了暴乱事件。好的，今天我们学习的词是break out, break out, break out...