指定顶点数产生多边形，对图像进行切换的英文

iris wipe

• 指定:    appoint; assign; a ...
• 顶点:    apex; zenith; acme ...
• 数:    frequently; repeat ...
• 产生:    produce; engender
• 多边形:    polygon
• 对:    answer; reply
• 图像:    picture; image; pr ...
• 进行:    be in progress; be ...