基本解釋n. 先入為主；全神貫注；極為忙碌（等于preoccupation）同根派生 preoccupancy相關(guān)詞英漢例句Occupation of a place in advance;preoccupancy. 搶先占據(jù)預先對某地的占據(jù);先占Occupation of a place in advance; preoccupancy. 搶先占據(jù)預先對某地的占據(jù)；先占preoccupancy, 先占(全神貫注),音標preoccupancy更多例句專業(yè)釋義醫(yī)藥科學全神貫注