全神貫注

quánshénguànzhù

concentrate one's attention on; be absorbed (or engrossed) in; be preoccupied with

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quan2 shen2 guan4 zhu4

to concentrate one's attention completely (idiom), with rapt attention

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全神貫注|全神贯注 [quán shén guàn zhù] ► to concentrate one's attention completely (idiom) ► with rapt attention