Sometimes we nod

点点头───nod the head;有时───Sometimes

Presently the watcher began to nod; his head drooped lower and lower, both men began to snore now.───不一会儿，看守开始打盹了。他的头越来越低，两个人都打起鼾来。

But in Bulgaria and Greece a nod means "no" and a shake of the head means "yes".───但在保加利亚和希腊，点头意味着“不”，摇头意味着“是”。

For example, a nod of the head means "yes" to most of us.───例如，对我们大多数人来说点头意味着“肯定”。

besides, what we ask should be replaced by nod the head or simple talk to answer to the greatest extent .───此外，我们所提的问题尽量可以用点头或简短语言来回答。