artificial selection

• 人工选择,人工淘汰,人为淘汰

artificial selection的用法和样例：

例句

1. They were natural and wild, not the product of generations of artificial selection.
   那是自然的，是野生的，并非几代的人工选择的产品。
2. Tree farmers have never subjected trees to the process of selection and breeding.
   林业农场主们也从未将林木置于人工选择和培养的过程之中。