outbreak是什么意思，什么词性，有什么常用
outbreak 扩展词汇 英 ['aʊtbreɪk] 美 ['aʊtbreɪk] n. 爆发；暴动 large-scale outbreak 大规模爆发; outbreak of disease 病发生。 outbreak survey 暴发调查;periodic outbreak 周期性猖獗,周期性大。 There has been an outbreak of typhoid. 那儿正爆发伤寒。 The research project fetched up because of the outbreak of the war. 由于战争爆发，这个研究计划搁浅了。 The hospital wards were fumigated after the outbreak of typhus. 发现斑疹伤寒以后，医院的病房进行了烟熏消毒。
break out是什么意思
break out的意思是（不愉快之事）爆发，突然发生;越狱;（因腻烦）改变生活方式，摆脱;出丘疹，出红疹，出汗等。 The authorities have urged people to stock up on fuel in case hostilities break out. 当局已敦促人们储存燃料，以防战事爆发。Dark clouds were gathering in the skies over Europe. War was soon to break out. 欧洲上空乌云密布，战争即将爆发。 She needed to break out of her daily routine and do something exciting. 她需要从日常事务中解脱出来，找点有意思的事做。A group of prisoners rushed an officer and managed to break out. 一伙囚犯突然袭击狱警，越狱了。