When we're talking with others, we can nod at the speaker from time to time to show that we're listening attentively.(当与他人交谈时，我们可以不时向说话者点头，以表明我们正在认真倾听。)
Now a study has found it really does help people nod off if it is milked from a cow at night.(现在一项研究发现，如果是晚上从奶牛身上挤的奶，确实能帮助人们打盹。)
A wink is as good as a nod to a blind horse.(对瞎马点头眨眼都是一样。)
They depart, with a smile and a nod, and we miss them, and feel resentful.(他们微笑着点点头，离开了，而我们又怀念他们，又怨恨他们。)
Of course, in certain circumstances, a simple wave, nod or smile may be appropriate.(当然，在某些情况下，简单的挥手、点头或微笑可能都是合适的。)
You nod and people know you are saying "Yes".(你点头，人们就会知道你在说“是”。)
While listening，you can nod your head to show you in favor of his/ her views.(倾听时，你可以点头示意你支持对方的观点。)
You may nod off while driving.(开车时你可能会打瞌睡。)
A friendly nod or a wave of acknowledgement in response to an act of courtesy helps to create an atmosphere of goodwill and tolerance so necessary in modern traffic conditions.(对礼貌行为的友好点头或挥手表示感谢有助于创造带有善意的宽容氛围，这在现代交通条件下是非常必要的。)
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”。)
