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词汇 concentrate
词根词缀
Online Etymology Dictionary
词根李平武蒋争

concentrate
v.
1630s, "to bring or come to a common center," from concenter (1590s), from Italian concentrare, from Latin com- "together" (see com-) + centrum "center" (see center, n.). Meaning "condense" is from 1680s. Sense of "mentally focus" is c.1860. Related: Concentrated; concentrating.
n.
1883, from concentrate, v..

〔李〕[con-(com-)=together一起;centr=centre 中心;-ate v.=to cause to be 使 ⇒“to cause to be together in a centre 使共处于一中心”→] vt. bring in one place together 集中
〔李〕[con- (com)=together共;centr=center中心;-ate v.=to cause to be使→to cause to be together in the center使共处于中心→] v. bring together to one point集中/You should concentrate yourself on your studies.你要专心学习。▽concentration [concentrat(e);-ion n.] n.集中;专心concentrator [concentrat(e);-or n.] n.集中者;专业研究者
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