Obviously I'd be disappointed if we don't make it, but it wouldn't be the end of the world.

显然，如果我们不能成功我会失望的，但天不会塌下来。

《柯林斯英汉双解大词典》

There is no reason to be disappointed. As a matter of fact, this could be rather amusing.

没有理由感到失望。事实上，这可能相当有趣。

youdao

Anyone keen on another comedy of manners will be disappointed. So too will those who hoped to write off Mr Ferris as a victim of literary hype.

但那些期待着又一部风尚喜剧的人将会大失所望，同样会失望的还有那些希望费里斯先生被扼杀在文学炒作中的人。

youdao

"I'm disappointed in the people who claim to be the leaders of the right-wing constituency in the country.

VOA: standard.2009.12.10

Many of my supporters will be disappointed, and some of my staffers will see their lives upended.

CNN: Transcript: Jeffords statement

Opener Joe Denly made 36 for the Lions, but although skipper Ian Bell avoided bagging a pair, he and the other batsmen will be disappointed that none of them managed to pass 30 in the second innings while the England selectors were at New Road to watch proceedings.

BBC: Australia draw with England Lions

Of course I was disappointed to be left out of the last round of Euro 2004 qualifiers, but I didn't go shouting the odds.

BBC: Big day out