基本解释n. 先入爲主；全神貫注；極爲忙碌（等於preoccupation）同根派生 preoccupancy相关词英汉例句Occupation of a place in advance;preoccupancy. 搶先佔據預先對某地的佔據;先佔Occupation of a place in advance; preoccupancy. 搶先佔據預先對某地的佔據；先佔preoccupancy, 先佔(全神貫注),音標preoccupancy更多例句专业释义毉葯科學全神貫注