•I've just received some very sad news.我刚刚得到一些令人伤心的消息。

•She gave a rather sad smile.她露出一丝苦笑。

•[+ (that)] It's sad (that) the trip had to be cancelled.很遗憾旅行被迫取消了。

•I'm so sad (that) you can't come.你不能来，我很遗憾。

•[+ to infinitive] It's sad to see so many failures this year.今年看到这么多失败的事情真是令人难过。

•I was sad to hear that they'd split up.听说他们分手了，我很难过。

•Give those flowers some water - they're looking a bit sad.给那些花浇点水——它们看起来蔫巴巴的。

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•The sad fact/truth is we can't afford to provide homes for all.令人遗憾的事实是，我们无法为所有的人提供住所。

•a very sad state of affairs十分糟糕的时局

•Sad to say, the ring was never found.真可惜，那枚戒指再也找不到了。

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•You enjoy reading timetables? You sad man!你喜欢看时间表？你可真无聊！

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