When disappointed or hurt, toddlers are often aggressive, although they do no damage.

当感到失望或受到伤害、刚学会走路的婴儿通常是积极的，尽管他们确实没有损失。

youdao

We're happy in love but melancholy when disappointed. Laughing is good while weeping understandable. Only don't be too sad.

恋爱使我们欢乐，失恋使我们伤感。笑是对的，哭也不是错，只是别那么悲伤。

youdao

When things go wrong, all of us naturally feel disappointed and frustrated.

出问题时，我们自然而然都会觉得失望和沮丧。

《柯林斯英汉双解大词典》

So when Kristi uses the truck to see her mother outside Washington, people are disappointed that she cannot stop to sell them cupcakes.

VOA: special.2010.04.12

He is gong to die." Many close to the case in Britain were disappointed last week when Megrahi dropped his appeal, which would have allowed for a review and examination of the evidence.

VOA: standard.2009.08.24

If you come up with ambitious goals, investors will be disappointed when you don't meet them.

CNN: BUSINESS

After trying my new jokes at my next gig, I was disappointed when they fell flat.

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Instead, they would rather create distractions which ultimately become excuses when voters become disappointed.

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