Unit Four*polish l.2: make less rough / more graceful; refine 使人、举止、仪表等 变得优雅;使升华E.g.: His manners need polishing. 他的举止欠优雅..*sharpen l.2: make … more nsitive 使敏锐;使敏捷E.g.: sharpen sb.’s mind / wits 使某
Unit Four*polish l.2: make less rough / more graceful; refine 使人、举止、仪表等 变得优雅;使升华E.g.: His manners need polishing. 他的举止欠优雅..*sharpen l.2: make … more nsitive 使敏锐;使敏捷E.g.: sharpen sb.’s mind / wits 使某