1. the gamete-producing individual or phase in the life cycle of a plant having alternation of generations. 
   在一种植物的生命周期中产生配偶子的个体或阶段，从而引起一代代的更替。
2. the spore-producing individual or phase in the life cycle of a plant having alternation of generations. 
   在一种植物的生命周期中产生孢子的个体或阶段，从而引起了一代代的交替。
3. A person, an animal, or a plant whose descent can be traced to a particular individual or group. 
   子孙，后代其血统可追溯到某特定个体或群体的人、动物或植物
4. plant with erect leafy stems bearing clusters of rayless yellow flower heads on bent individual stalks; moist regions of southwestern United States. 
   有直立、多叶的茎和簇生的、无边花的、黄色头状花序；生在美国西南部潮湿的地区。
5. No unit or individual may obstruct a quarantine functionary of an animal and plant quarantine organ from carrying out his or her duties according to law. 
   　　动植物检疫机关检疫人员依法执行公务，任何单位和个人不得阻挠。

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• 1. 单株选择
  selection differential 选择差...individual plant selection 单株选择...bud selection 芽选择
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