v.撇去( skim的第三人称单数 );掠过;轻轻擦过;略读;
例句:
She skims the milk to get cream.
她是从牛奶中提取乳脂的.
A seagull skims the water.
海鸥掠过水面.
He always skims off the best students for his classes.
他总是为自己的班级挑选最好的学生.