名词
中文翻译：Unknown
同义词：
['superior stem', 'superior branch', 'superior shoot']
例句：
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1.The plant's superior root is essential for its survival.
植物的上等根对其生存至关重要。
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2. The superior root of the tree provides it with a strong foundation.
这棵树的上等根为它提供了坚实的基础。
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3. The superior root system helps the plant absorb water and nutrients from the soil.
优良的根系系统帮助植物从土壤中吸收水分和养分。