-dimensional
(forming compound adjs 用以构成复合形容词) having the specified number of dimensions ...维的; ...方面的
A square is two-dimensional and a cube is three-dimensional. 正方形是二维的(平面的), 而正六面体则是三维的(立体的).
However, in recent times the old-age pension has only been paid to the poorest people because there has been an increase in the number of people out of work.189