diagram/'daɪəgræm/

n. a drawing that uses simple lines to show where sth is, how sth works, etc.

n. [C] 图表，图解；简图：[diagram of sth] a diagram of a car engine 汽车发动机图解

◇The teacher drew a diagram showing how the blood flows through the heart. 老师画了一张简图来说明血液如何流过心脏。

构词dia + gram（图文）

同根 gram; grammar; kilogram; programme; telegram