名词
中文翻译：环形胚珠
同义词：
['circular ovule', "spiral ovule例句：1. The plant's ovules are responsible for producing seeds.（这种植物的胚珠负责产生种子。）"]
例句：
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1. The plant's ovules are responsible for producing seeds.
这种植物的胚珠负责产生种子。
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2.The development of the ovule is crucial to the growth of the plant.
胚珠的发展对植物的生长至关重要。
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3. The ovule is a small, round structure that contains the female reproductive cells.
胚珠是一个小圆形的结构，里面包含了雌性生殖细胞。