Sketch means: 1.Preliminary drawing for later elaboration 2.A brief literary description 3.A humorous or satirical drawing published in a newspaper or magazine while portray 1.Represent abstractly, for example in a painting, drawing, or sculpture Cowboy...

sketch equal to draw a picture, and portray equal to write, to discribe. I think so. For example: LI Pei-fu, the author, successfully portrays two figures HU Guo-qing and HU Tian-cheng in his works and sketches a fable prospect through their behaviours, by which the author expresses his critical contemplation. 译文 作家李佩甫在作品中,比较成功地塑造了两个人物———呼国庆和呼天成,并通过他们的行动勾画出一幅寓言图式,以此来寄寓自己对历史与现实深刻的批判性思考。