acu·men /əˈkjumən, ˈækjəmən/
敏銳,聰明
A·cu·men n. Quickness of perception or discernment; penetration of mind; the faculty of nice discrimination.
Syn: -- Sharpness; sagacity; keenness; shrewdness; acuteness.
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acumen
n 1: a tapering point
2: shrewdness shown by keen insight [syn: insightfulness]