形容词
中文翻译：双的
同义词：
['double', 'dual', 'twofold']
例句：
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1. This pair of shoes fits me perfectly.
这双鞋子我穿得非常合脚。
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2. The teacher gave us a double test on the next day.
老师在第二天给我们做了双倍的测试。
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3. The company has doubled its profits in the past year.
这家公司过去一年的利润翻了一番。