词典释义：
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His face had lost its boyish roundness.
他的脸已不是小时候那副圆圆的娃娃脸了。
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Open the Brushes palette, decrease the roundness.
打开画笔面板，减少圆度。
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Her hair style exaggerates the roundness of her face.
她的发型使得她的脸显得更圆了。
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The cutting edge roundness can make chip curling radii larger.
切削刃钝圆一般能使切屑卷曲半径增大。
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Horizontal bands on a shirt emphasize the roundness of your stomach.
衬衣上的水平条纹使你的肚子看起来更圆了。
词根 round
圆度是指工件的横截面接近理论圆的程度，最大半径与最小半径之差为0时，圆度为0，测量工具为圆度仪，用途是测环形工件的圆度。