名词
中文翻译：缩小比率
同义词：
['reduction rate', 'shrinkage rate']
例句：
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1. The company plans to reduce its carbon emissions by 20%.
该公司计划将其碳排放量减少20%。
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2. The material will have a higher shrinkage rate when heated.
这种材料在加热时收缩率会更高。
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3. The reduction in the number of cars on the road has led to a decrease in pollution levels.
道路上汽车数量的减少导致污染水平下降。