nod過去式

過去式是nodded，意思是點頭，例如：

1、I asked him if he would help me and he nodded.我問他能不能幫我一下，他點了點頭。

2、She nodded as a sign for us to sit down.她點頭示意我們坐下。

3、She nodded in agreement， and he saw he had carried his point.她同意地點點頭，他明白他的話已收到效果。