名词
中文翻译：叶脉体
同义词：
['leaf vein', 'vascular bundle']
例句：
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1. The plant's olivary body is responsible for transporting waterand nutrients to the leaves.
植物的叶脉系统负责将水分和养分输送到叶子。
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2. During photosynthesis, theolivary body absorbs carbondioxide from the atmosphere and convertsit into glucose.
在光合作用过程中，叶脉系统从大气中吸收二氧化碳并将其转化为葡萄糖。
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3. The olivarybody of a tree is an important partof its structure, providing support and allowingfor growth.
树木的叶脉系统是其结构的重要组成部分，提供支撑并允许生长。