outburst
/ˈautbɜ:st; `aʊtˌbəst/ n
(a) bursting out; explosion爆发; 爆炸
an outburst of steam from the pressure-cooker 从压力锅中喷发出来的一股蒸汽.
(b) sudden violent expression, esp of strong emotion 迸发, 发作（尤指感情的）
an outburst of laughter, anger, etc 一阵大笑、 勃然大怒
outbursts of vandalism 对公物的大破坏.