Each of the couples, after the convolutions and evolutions, successively whirls round in a circle, till all are in motion.在回旋和动作变换都做完后，围成圆形的每对舞伴相继旋转直到所有舞伴都旋转起来。He used a special machine to round off the corners of the old table.他用了一台特制的机器将这张旧桌子的角打磨成圆形。Slice the potatoes into rounds.把马铃薯切成圆形薄片。