Word: 平面 (píngmiàn) 平面 dictionary entry píngmiàn plane; flat surface; flat Full dictionary entry for 平面 Example sentences using 平面 2 sentences, showing page 1 of 1. 他画的人物太平面了。 Tā huà de rénwù tài píngmiàn le. The figures he draws are too flat. 平面和直线有什么关系？ Píngmiàn hé zhíxiàn yǒu shénme guānxi? What is the relationship between a plane and a line?