And the other, of course, is a birth control pill, which, in a very simple way, fundamentally changed the structure of society by changing the role of women in it by providing to them the opportunity to make reproductive choices.
另一个例子，当然，是避孕药 一个非常简单的方式 它却从根本上改变了社会的结构 通过改变女人在社会中的角色 通过给她们提供 选择是否怀孕生子