“草图”的英语？

“草图”的拼音为：cǎo tú...

用不同颜色的毡头笔画草图，以免搞混。Use different colours of felt pen on your sketch to avoid confusion.草图应该是最终绘画的某种演练。The sketch should be a kind of rehearsal for the eventual painting.你最好还是画张这栋建筑的草图.You'd better block in a plan of ...