1730, shortening of cadet (q.v.); originally used of servants, then (1831) of town boys by students at British universities and public schools (though at Cambridge it meant "snob"). Meaning "person lacking in finer feelings" is from 1838.
A cad used to be a jumped-up member of the lower classes who was guilty of behaving as if he didn't know that his lowly origin made him unfit for having sexual relationships with well-bred women. [Anthony West, "H.G. Wells: Aspects of a Life," 1984]
实用例句
1. The cad! The bounder!
无赖！骗子！来自柯林斯例句
2. He's a scoundrel! A cad!
他是个流氓!无赖!来自柯林斯例句
3. Data format of CAD often don't accord with requirements of GIS.
