[no obj.]enter forcibly or suddenly 侵入;闯进 the spectre of social revolution once again irrupted into a confident capitalist world. 社会变革的幽灵又一次闯入了信心十足的资本主义世界。 ■(of a bird or other animal) migrate into an area in abnormally large numbers (鸟或其他动物)涌入(某地)
派生 irruption noun irruptive adjective 语源
mid 19th cent.: from Latin irrupt- 'broken into', from the verb irrumpere, from in- 'into' + rumpere 'break'