noun 下载 🔗分享 母线,生成曲线。 A curve that, when rotated about an axis, produces a solid figure Examples : "In geometry class, we learned that circles are the generatrices that create spheres when rotated. " 在几何课上,我们学到,圆是生成球体的母线,旋转一周就能得到球体。 math figure 与AI对话词汇游戏阅读练习