名词
中文翻译：双重差分
同义词：
['double difference', 'double difference', 'double difference']
例句：
-
1. The researchers used a double difference method to analyze the data.
研究人员使用双差分方法分析数据。
-
2. The company's performance has doubled since its inception.
该公司自成立以来业绩翻倍。
-
3. The teacher doubled the homework for the next day's test.
老师为第二天的考试增加了作业量。