infanticide

1.Some forms of infanticide in ancient societies, present-day reprogenetics, preemptive abortions and designer babies have been (sometimes controversially) referred to as eugenic.

古代社会的某些杀婴、当今的生殖遗传学、抢先堕胎和由设计者设计婴儿这些（有时是有争议的）动都被称优生。