Don't be sad for the falling leaves.

不要为落叶而伤心。

youdao

And now I can honestly be sad for her.

老实说，现在我可以为她感到伤心了。

youdao

But if your relationship ends, do not be sad for long.

但是如果你们的恋爱关系结束了，不要难过太久。

youdao

Then,the Crimean War broke out. I felt that sad for him that there had to be a war.

VOA: special.2010.03.27

I am going to be sad when they finally get a name for it.

我会感到很伤心的,如果他们最后给它起名的话。

麻省理工公开课 - 固态化学导论课程节选

How many of you, if you were playing for, I guess it's going to be America, which is a sad thing to start with,never mind.

有多少人会,假设你为一个球队效力,比如说是美国国家队吧,可能有些难以启齿,没关系

耶鲁公开课 - 博弈论课程节选

And it would be sad for them to have to move away from here to have a job.

CNN: Transcript of May 'CNN Money Summit: Money & Main St.'

If so, that would appeal to those who want to get their sail on, but it would be sad for others (myself included) who enjoy rooftop hopping and dagger-related escapades.

FORBES: Assassin's Creed 4: Pirates of the Assassination

And now I can honestly be sad for her.

NEWYORKER: Good Neighbors