名词短语
中文翻译：一个或另一个
同义词：
['one of the two', 'one of the two choices', 'one of the two options']
例句：
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1. I'll pick up one of the books on your list.
我会拿你清单上的一个书。
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2. We have to choose between these two options.
我们必须在这两者之间做出选择。
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3. One of the students in our class is good at math.
我们班其中一个学生擅长数学。