It's really one of those days; everything seems out of gear today.

今天真是倒霉的日子, 所有的事情似乎都出了问题.

《简明英汉词典》

One of those days is none of these days.

过去的某一天,不是现在的任一天.

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One of those days, I donned a sweatshirt and slacks.

一天, 我穿了一件运动衫和一条休闲裤.

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It was one of those days when nothing seemed to go right.

那是倒霉的一天,似乎没一件事顺当.

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It was just one of those days!

这就是事事不顺心的那么一天!

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I knew it would turn out to be one of those days when I overslept.

我明白,如果我睡过头,那结果会是很不妙的.

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I've had one of those days: my train was late, and I lost my wallet.

这一天我真不幸: 火车晚点, 我又丢了钱包.

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Some days I about more than others. Today is one of those days.

有些日子里,我比其他人更耽于回忆, 而今日也是其中之一.

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Today is going to be one of those days when everything goes wrong.

今天又会是一切都不称心如意的一天.

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