1. The couple decided to undergo genetic testing to ensure they were compatible eugenically before starting a family.
这对夫妇决定在开始家庭之前进行基因测试，以确保他们在遗传上是相容的。

2. Some people believe in selecting their partners eugenically to ensure the best genetic traits are passed down to their children.
有些人相信通过优生学的方式选择配偶，以确保最佳的遗传特征传递给他们的孩子。

3. The government implemented eugenic policies to control the population growth and improve the overall genetic quality of the society.
政府实施了优生学政策来控制人口增长，提高社会的整体遗传质量。

4. Many scientists argue that eugenically modifying genes could potentially eradicate certain genetic diseases in future generations.
许多科学家认为，通过优生学修改基因有可能在未来几代中根除某些遗传疾病。

5. The controversial practice of eugenically selecting embryos for desired traits has sparked ethical debates among experts.
通过优生学选择具有理想特征的胚胎的争议性做法在专家之间引发了伦理辩论。

6. Critics argue that eugenically manipulating genes could lead to unintended consequences and harm genetic diversity in the population.
批评者认为，通过优生学方式操纵基因可能会导致意想不到的后果，并危害人口的遗传多样性。