a disappointment!真让人失望! 　　What a disappointment!That's too bad./What a letdown! 　　I'm disappointed with it./This is disappointing.
　　 a pity!太遗憾了! 　　What a pity!/What a shame!/What a bummer!/Bummer! 　　口语中用来表示事情的进展不像自己所想象的那样。 　　Too bad!/That's too bad!
　　短对话 　　A:What a shame!多倒霉！ 　　B:Isn't it though?就是呀!太糟糕了。
　　 was a waste of effort.白费力了。 　　It was a waste of effort. 　　waste浪费，白搭;effort表示努力，费尽力气。 　　It was a waste of my effort./My effort was wasted. 　　All my effort went down the drain.
　　短对话 　　A:Did you find him?你找到他了吗? 　　B:No, he led me on a wild-goose chase.没有，白费了半天劲。
[图片0] 　　 that for nothing.前功尽弃。 　　All that for nothing. 　　事情进展得不那么顺利时，表示“我费了那么大的劲儿，我做出了那么多的努力”。 　　It was all a waste. It was all for nothing.
　　 let me down称真让我失望。 　　You let me down./You disappointed me.
　　短对话 　　A:I'm sorry I didnt come to your wedding.对不起，我没能出席你的婚礼。 　　B:Yeah, you let me down.是啊，你让我失望。
　　 blew it.我真失策。 　　I blew it. 　　常用理语，表示“失败”“失策”“干了一件蠢事”。 　　I screwed up./I messed up./It's my entire fault.
　　短对话 　　A:I blew it. I lost the custome。我真失策，失去了那个客户。 　　B:Make sure it doesn't happen again.再也不要发生这样的事了.