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TOEFL IELTS BNC: 7090 COCA: 9413

radius noun [ C ] DISTANCE

(the length of) a straight line joining the centre of a circle to its edge or the centre of a sphere to its surface(圆或球体的)半径,半径长度

The radius of this wheel is 30 cm..这个轮子的半径是30厘米。
This wheel has a radius of 30 cm.这个轮子的半径是30厘米。

a distance from a central point半径距离;半径范围;周围

The station, shopping centre and school lie within a one-mile radius of the house.车站、购物中心和学校都在距这所房子1英里的范围之内。

radius noun [ C ] BONE

specialized anatomy the thicker of the two bones in the lower arm桡骨

TOEFL IELTS BNC: 7090 COCA: 9413
TOEFL IELTS BNC: 7090 COCA: 9413
TOEFL IELTS BNC: 7090 COCA: 9413

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