单语范例（未经PONS编辑处理）
英语
- The single flower occurring in each leaf axil has no petals but white, rough-textured, awn-tipped sepals clustered around the leaves.en.wikipedia.org
- The spiral shape of the awn can unwind during daily changes in humidity, leading to self-burial of the seeds once they are on the ground.en.wikipedia.org
- The awn becomes twisted when dry and straightens when moistened, and in combination with the spike is capable of drilling the seed into the soil.en.wikipedia.org
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