详细解释:vt. 抢先占领, 使全神贯注
词型变化：
动词过去式:preoccupied过去分词:preoccupied现在分词:preoccupying第三人称单数:preoccupies英语解释：
动词 preoccupy:
engage or engross the interest or attention of beforehand or occupy urgently or obsessivelyoccupy or take possession of beforehand or before another or appropriate for use in advance例句：
She seemed preoccupied all the time I was talking to her.我跟她讲话时她始终显得心事重重。