是什么让黑尾鹿在植物腐烂和休眠的严酷季节里存活下来？
What keeps the black-tailed deer alive in the harsher seasons of plant decay and dormancy?
木本植物芽的内休眠是植物经过长期演化而获得的一种对环境及季节性变化的生物学适应性，其机制较为复杂。
The bud endo-dormancy in woody perennials, which formed during a long evolutional process, is a biological adaptability to the changes of environmental factors and different seasons.
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