They are America's committed cohabiters, and theirs is the fastest-growing kind of U. S. household.
他们选择以负责任的态度同居，而且这已成为了美国增长最快的家庭模式。
2
In any case, denying unmarried cohabiters (over a quarter of people aged 25-34) a shot at civil partnership, with its defined rights and responsibilities, seems myopic.