| 单词 | 周皮 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔periderm〕The outer layers of tissue of woody roots and stems, consisting of the cork cambium and the tissues produced by it, such as cork.周皮：木质根或干的外层组织，包括软木形成层和形成层的产物，如软木美国传统〔perionychium〕The border of epidermal tissue surrounding a fingernail or toenail.甲周皮：围绕手指甲或脚指甲的表面组织边缘美国传统 |
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