radius 英 [ˈreɪdiəs] 　 美 [ˈrediəs]

radius

radius　 英 [ˈreɪdiəs] 美 [ˈrediəs]

n. 半径，半径范围　

名词复数:radii　

And so the radius of this...　因此它的半径。
They deliver to within a 5-mile radius of the store.　他们对距离店铺 5 英里的范围内送货上门。

  • If you're a detective working a crime investigation, you might be told to "search over a one-mile radius," meaning, scope out everything that's within one mile of the crime scene.
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  • n. 半径，半径范围

  • 1. And so the radius of this...

    因此它的半径。

  • 2. They deliver to within a 5-mile radius of the store.

    他们对距离店铺 5 英里的范围内送货上门。

  • radius (n.) 1590s, "cross-shaft," from Latin radius "staff, stake, rod; spoke of a wheel; ray of light, beam of light; radius of a circle," of unknown origin. Perhaps related to radix "root," but de Vaan finds that "unlikely."
ra·dius / ˈreɪdiəs ; NAmE ˈreɪdiəs / noun ( plural radii / ˈreɪdiaɪ ; NAmE ˈreɪdiaɪ / ) 1 a straight line between the centre of a circle and any point on its outer edge; the length of this line 半径（长度） ☞compare diameter  (1 ) 2 a round area that covers the distance mentioned from a central point 半径范围；周围 ◆ They deliver to within a 5-mile radius of the store. 他们对距离店铺 5 英里的范围内送货上门。 3 ( anatomy 解 ) the shorter bone of the two bones in the lower part of the arm between the elbow and the wrist, on the same side as the thumb 桡骨 ☞see also ulna radius radii ra·dius / ˈreɪdiəs ; NAmE ˈreɪdiəs / radii / ˈreɪdiaɪ ; NAmE ˈreɪdiaɪ /
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词频排名 noun:9620
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