名词
中文翻译：Unknown
同义词：
['misfortune', 'bad luck']
例句：
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1.She always seems to have hit-or-miss relationships.
她似乎总是有不成功的恋爱关系。
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2. He's hit-or-miss at work; he never seems to get promoted.
他在工作上总是不顺利，似乎永远得不到晋升。
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3. The lottery is a hit-or-miss gamble.
彩票是一种运气好或坏的赌博。