the mental state of being preoccupied by something
同义词：preoccupation, absorption, engrossment
the act of taking occupancy before someone else does
同义词：preoccupation
preoccupancy详细解释
pre.oc.cu.pan.cy
n.（名词） The act or right of occupying a place beforehand or in advance. 先占权：事先或预先占据某地的行为或权利 The state of being preoccupied or engrossed; preoccupation. 专心：全神贯注或被吸引的状态；全神贯注
