名词
中文翻译：四倍时间
同义词：
['double time', 'triple time']
例句：
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1.We need to double our efforts to finish the project on time.
我们需要加倍努力，按时完成这个项目。
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2. The racers are racing at triple the speed of the previous day.
赛车手们的速度是前一天的三倍。
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3.She took a quadruple dose of medication before going to bed.
她上床前服用了四倍剂量的药物。