When we were 14 years old, we lived in Hawaii and we lived in a small efficiency apartment.
14 岁的时候, 我们住在夏威夷, 住在一间高效的小公寓里。
英语百科
Studio apartment
(重定向自Efficiency apartment)
A studio apartment, also known as a studio flat (UK), a self-contained apartment (Nigeria), efficiency apartment or bachelor apartment, is a small apartment which combines living room, bedroom, and kitchenette into a single room.