1. 抢先占据; 极为忙碌; 出神 (名)：prentice 定期学徒, 徒弟 (名) | preoccupancy 抢先占据; 极为忙碌; 出神 (名) | preoccupied 被先占的, 一心一意的, 出神的 (形)
noun
1. the act of taking occupancy before someone else does
Synonym: preoccupation
2. the mental state of being preoccupied by something
Synonym: preoccupationabsorptionengrossment