The flowers are mostly gone. It is not surprising that some people are sad in winter.

VOA: special.2009.01.26

The difference between the extremely happy people and extremely unhappy people is not that one gets sad, of upset, or anxious, or depressed; and the other does not.

极其快乐的人和极其不快乐的人,区别不是在于一个会伤心，难过，焦虑或抑郁;,而另一个不会。

哈佛公开课 - 幸福课课程节选

Let's say you're watching a sad movie, and the theater is filled with people.

假设你正在看一部悲情的电影，电影院里坐满了人。

I can't help but 课堂 - SpeakingMax英语口语达人

And the people, with heads hanging low and sad hearts, slowly made their way home.

VOA: special.2009.04.18

and the people with their stories, sad stories to tell.

还有讲述自己的故事的人们，伤心的故事。

英国的真人秀 - SpeakingMax英语口语达人

It really is a sad situation, and I feel sympathy for the people involved.

VOA: special.2010.07.11

The sad thing is that the majority of people that are killed by malaria are children because there immune system is not strong enough to ward off this infection."

VOA: special.2009.12.22

People who are down in the dumps are sad.

VOA: special.2009.10.25

"People living sad lonely existences.

VOA: special.2011.05.20

Kevin Sampson said "If they are finding comfort with friends online rather than meeting people, that's pretty sad."

VOA: standard.2010.07.23

"Yeah,very sad. Just very surprised , sort of thing we have gone through, a lot of people that have been here, sort of last evening,so yeah, very sad," said one fan.

VOA: standard.2009.06.26