他花了七年的时间对上千株豌豆进行杂交和计数，以此来验证遗传定律。

It took seven years to cross and score the plants to the thousand to prove the laws of inheritance!

youdao

他花了七年的时间对上千株豌豆进行杂交和计数，以此来验证遗传定律。

It took seven years to cross and score the plants to the thousand to prove the laws of inheritance!

youdao