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1. The plant's root system is composed of a central axis and several sub-axial roots.
这植物的根系由一个中心轴和几个子轴根组成。
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2. During the development of the fruit, the seeds are embedded in the sub-axial layers of thefruit.
在果实发育过程中,种子被嵌入果实的子轴层中。
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3. In the process of photosynthesis, the plant absorbs carbon dioxide from the atmosphere through the sub-axial layers ofits leaves.
在光合作用过程中,植物通过叶子的子轴层吸收大气中的二氧化碳。