noun 下载 🔗分享 五角星, 五芒星 The shape of a five-pointed star constructed of five intersecting lines meeting at the vertices, such that a central pentagon and five surrounding isosceles triangles are formed; often with magical connotations; a 5/2 (or 5/3) star polygon. Examples : "The student drew a pentagram on the chalkboard for the math lesson on geometric shapes. " 为了上几何形状的数学课,学生在黑板上画了一个五角星。 figure math art religion mythology sign supernatural 与AI对话词汇游戏阅读练习