1. By such ingenious adaptations to specific pollinators , or childs have avoided the hazards of rampant crossbreeding in the wild. 通过巧妙地适应具体传粉昆虫，兰花避免了在野外杂交泛滥的危险。
2. Even when crossbreeding creates a viable hybrid, the offspring often inherits multiple copies of each parents' chromosomes, or sets of genes . 即使杂交成一个可生育的后代，这些后代也会继承他们双亲染色体或基因组的多份拷贝。
3. Three protocols including Jinnan cattle development, economic crossbreeding and gene bank construction was evaluated, and recommendations on three protocols was proposed. 本文对晋南牛开发实施方案、经济杂交方案及基因库工作方案的内容给予了肯定的评价，并对三个方案提出了意见和建议。
英英解释
n.
1. (genetics) the act of mixing different species or varieties of animals or plants and thus to produce
2. reproduction by parents of different races (especially by white and non-white persons)
