scan和skim有什么区别呢?如题

scan 指（用仪器）扫描 I advise you have a brain scan。我建议你做个脑部扫描检查。电脑外设scanner 扫描仪 skim 指（人脑）略读It took me an hour to skim the book。我花了一小时把这本书浏览了一遍。