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.这做饭的人也许并非为了艺术而在演练技艺, 而是另有不可告人的目的.The cook might be practising her art , not for art's sake, but for immoral purposes.提供可用于组件创建和实现的演练列...
You'd better not mess about in the affairs of others.你最好不要干预别人的事.Don't mess about my bags.不要弄乱我的书包.You'll never finish this job if you mess about.你这么瞎弄,这件事永远也完不了....