■ and... at that

用来表示比前面所说的更进一步，程度更高。

• He has a Ph. D. degree, and from Harvard at that.他有博士学位，而且是哈佛的。
• Today, food safety is a business—and a booming one at that. (US News & World Report, Dept. 15-22, 2008, p.27)今天，食品安全已经成了一门行业，而且是欣欣向荣的行业。

• contrary to
• contribute
• contribute 与 contribution
• contribution
• control
• controversial
• controversial 与 contentious
• convenient
• convince
• convinced
• convince 与 persuade
• cook
• cord
• cord 与 chord
• corner
• corporate
• corps
• corps, corpse 与 corpus
• corpse
• corpus
• cost
• could
• could not enough
• could't enough
• council