名词短语
中文翻译：次生根生长
同义词：
['subordinate growth', 'secondary development', 'secondary branching']
例句：
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1. The tree's secondary growth is visible in the new leaves.
新叶中可见到树木的次生生长。
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2. During the secondary growth stage, plants grow more slowly but steadily.
在次生生长阶段，植物生长得较慢但稳定。
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3. The research focused on the secondary growth of the plant's roots.
研究专注于植物根系的次生生长。