sketch n.草圖 ( 作為初步研究而畫的 )
【類】sketch:painting＝outline:essay
畫畫先畫草圖＝寫短文先寫提綱
doggerel:poem＝sketch:draw
打油詩是粗略的詩＝草圖是粗略的圖

sketch 源自 scheme結構形狀

skhedios "temporary, extemporaneous, done or made off-hand," related to skhema "form, shape, appearance" (see scheme

希臘字演變而來 意思是暫時的把結構畫出來 = 草稿