| 单词 | doubling |
| 释义 | Word Frequency doubling(ˈdʌblɪŋ) noun the activity of multiplying by two or repeating her doubling of her prayers for him A simple doubling of carbon dioxide in the atmosphere will take us to exactly thatpoint: one degree warmer. A ten-fold increase in dietary selenium causes a doubling of this enzyme in the body. |
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