过去式是nodded,意思是点头,例如:1.I asked him if he would help me and he nodded.我问他能不能帮我一下,他点了点头。2.She nodded as a sign for us to sit down.她点头示意我们坐下。3.She nodded in agreement, and he saw he had carried his point.她同意地点点头,他明白他的话已收到效果。