outbreed

例句：

1. 1. Thenew breed of cars is more fuel-efficient than the old ones.
   新型汽车比旧型汽车更节能。
2. 2. Thescientists are trying to breeda better strain of bacteria.
   科学家们正在尝试培育一种更好的细菌菌株。
3. 3. The couple outbreedstheir children with different races and ethnicities.
   这对夫妇与不同种族和民族的孩子杂交生育。