breeding
/ˈbriːdɪŋ/noun
mass noun
1- the mating and production of offspring by animals（动物的）交配; 生育, 生殖, 繁殖：
the flooding of the rivers is a trigger for breeding to start.
河流泛滥会引发动物生育繁殖。
1.1
- the activity or process of causing animals to mate and produce offspring育种, 繁育：
the breeding of rats and mice for experiment.
繁育实验用老鼠。
1.2
- the good manners regarded as characteristic of the aristocracy and conferred by heredity教养：
a girl of good breeding.
一个有良好教养的女孩。