设计师把复杂的空间关系压缩到一张平面图里,便于业主比较方案。Shèjìshī bǎ fùzá de kōngjiān guānxì yāsuō dào yì zhāng píngmiàn tú lǐ, biànyú yèzhǔ bǐjiào fāng'àn.The designer compressed complex spatial relationships into a floor plan so that the client could compare the proposals more easily.
这幅画是平面的,没有立体感。Zhè fú huà shì píngmiàn de, méiyǒu lìtǐgǎn.This painting is flat and has no sense of depth.
在平面上画一个立方体并不容易。Zài píngmiàn shàng huà yí ge lìfāngtǐ bìng bù róngyì.It is not easy to draw a cube on a flat surface.