动词短语
中文翻译：重复两次
同义词：
['do twice', 'repeat twice']
例句：
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1. She decided to double the amountof money she had saved.
她决定将她所存的钱加倍。
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2. Theteacher asked us to doubleour efforts in order to passthe exam.
老师要求我们加倍努力以便通过考试。
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3. After the meeting, wewere told to double-check all thedetails before submitting the report.
会议结束后，我们被告知在提交报告之前要仔细检查所有细节。