名词
中文翻译：年度根
同义词：
['annual shoot', 'annual growth']
例句：
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1. The tree's annual root system is extensive and deeply embedded in the soil.
这棵树的年度根系系统广泛且深入土壤。
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2. The researcher found that the annual root system of the plant was crucial for its survival.
研究者发现植物的年度根系系统对其生存至关重要。
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3. The annual root system helps the plant to anchor itself in the ground and absorb nutrients from the soil.
年度根系系统帮助植物固定在地面上，从土壤中吸收养分。