名词
中文翻译：叶子下刺
同义词：
['underleaf thorn', 'underleaf spine']
例句：
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1.The plant has a unique ability to grow in the shade and protect itself from predators with its underleaf lances.
这种植物有独特的能力，可以在阴凉处生长，并用其叶下刺保护自己免受捕食者的伤害。
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2. The underleaf lances on this flower are designed to deter insects from feeding on it.
这种花上的叶下刺是为了防止昆虫食用它而设计的。
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3. The underleaf lances on the leaves of this tree are used as defense mechanisms against herbivores.
这种树的叶子上的叶下刺是作为一种防御机制来抵御食草动物的。