Centroids
(centroid 的復數) n. 質心\\n[機] 瞬心線
??? 情景例句
Drug dependence should be looked at as a medical issue, not a criminal one.
毒品信賴應該被看成是醫學問題，而不是犯罪問題。
What's the point of feeling blue?
有什么好悲傷的？
I am a football fan.
我是個足球迷。