回交

例句：

1. 1. In genetics, crossbreeding refers to the process of breeding two different species together.
   在遗传学中，杂交是指将两种不同物种进行繁殖的过程。
2. 2. Backcrossing is a technique used in plant breeding to improve traits through selective breeding.
   回交是植物育种中的一种技术，通过选择性育种来改善特性。
3. 3. The breeder uses backcrossing to introduce desirable traits from one parent into the offspring.
   育种者使用回交技术将一个亲本的有利特征引入后代。