- uptake (n.)
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[uptake 词源字典] - "capacity for understanding, perceptive power," 1816, from up (adv.) + take (v.). Compare Middle English verb uptake "to pick or take up" (c. 1300). Meaning "pipe leading up from the smoke box of a steam boiler to the chimney" is from 1839.[uptake etymology, uptake origin, 英语词源]