1·It's sad, of course, that a person may have to spend the rest of his life, or a large part of it in prison for acts that he committed while not in full control of his mind.
当然，一个人因为在无法全权掌控自己思想的情况下所做的行为，而可能要在监狱中度过余生，或在监狱中度过大部分时间，这当然是令人难过的结果。
2·I thought about how the world was a sad, disappointing place.
我想，世界是怎样一个令人难过、失望的地方呢。
3·"It'd be sad when you have to go back to reality," said Della Whitton, 41, Simpson's girlfriend and fellow Disney addict.
“当你不得不回到现实中时，这是令人难过的，”现年41岁的黛拉•惠顿说。她是辛普森的女友，也是一位迪斯尼迷。
4·I am not saying it isn't sad, but at the same time it isn't our choice to say how long someone is to live, now is it?
我并不是说这不令人难过，但是，说某人能活多久并不是我们能够选择的，不是吗？
5·And they found that the folks on botox took longer to read and understand the sad and angry sentences than they did the happy ones.
心理学家发现相比于阅读并理解令人高兴的文字，注射了肉毒杆菌的受试者会花更长的时间去读懂并理解令人难过及生气的文字。
1·She looked sad and tired.
她看上去又伤心又疲惫。
—— 《牛津词典》
2·What does a child do when he's sad?
一个孩子伤心的时候会做什么？
3·What is making you so sad?
什么事让你这么伤心？
4·Why was the duckling sad sometimes?
为什么小鸭子有时候会伤心？
5·This makes Pourazar very sad.
这让 Pourazar 非常伤心。