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According to William Greenough if there is no
问题详情
According to William Greenough, if there is no exercise within a month, the new neurons, and the connections between them will ______.请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：shrink down
shrink down 解析：根据will可知此处要填入动词。根据该句可知，新的神经细胞和它们之间的连接会保持很多年，但是如果一个月不运动的话，它们会退化，所以不难得出答案为shrink down。
