look round 环顾...look sharp 注意...look small 显得渺小

Action English(161） 动感英语（161）...1.look sharp 提高警惕，振奋...例：Our boss told us to look sharp when the president comes for a visit.

look over 检查...look sharp 快，赶紧...look up 查字典

look sharp！当心（赶快）！...look sharply！警惕地看着！