名词
中文翻译：双倍的
同义词：
['double', 'quadruple', 'multiply', 'double-up', 'doubling']
例句：
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1. Theprice of the product has doubled since last year.
该产品的价格自去年以来翻了一番。
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2. He doubled his efforts to finish the project on time.
他加倍努力以按时完成项目。
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3. They doubled down on their investment in the new technology.
他们加倍投资于新技术。