(of a matter or subject)dominate or engross the mind of (someone) to the exclusion of other thoughts
使全神贯注;使入神
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his mother was preoccupied with paying the bills 他母亲满脑子想的是付账问题
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[as adj.
preoccupied ]she seemed a bit preoccupied .她好像有点心事。
"mid 16th cent.: from