obsessiveness

/əbˈsesɪvnɪs/
the state or quality of being obsessively concerned or focused on something or someone, often in an unhealthy or excessive way

noun [抽象名词] 执念

He retained that obsessiveness and excitement, never growing out of them. 他乐此不疲、兴奋异常、从不言弃。

后缀: ness 【noun】 表示状态或质量的性质 - indicating the state or quality of 原词: obsessiveness 是通过后缀 【ness】 构成的派生词
单词造句:
网友用 “Obsessiveness” 造句精选
This obsessiveness has even led to violent consequences. Last week, police in France said that they had thwarted a plot by a boy, 13, to murder his school teachers. 这种痴迷甚至导致暴力性后果,法国警方上周表示,他们挫败了一个13岁男孩企图谋害本校老师的阴谋。