动词
中文翻译：双重
同义词：
['augment', 'multiply', 'duplicate例句：1. He doubled his efforts to finish the project on time.（他加倍努力以按时完成这个项目。）']
例句：
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1. He doubled his efforts to finish the project on time.
他加倍努力以按时完成这个项目。
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2.The company doubled its profits last quarter.
该公司上个季度的利润翻了一番。
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3. She doubled her salary after receiving a promotion.
她在获得晋升后薪水翻倍了。