■ 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。

• anyone
• anyone have
• anyone 与 any one
• anything
• anything but
• any time
• anytime
• anytime 与 any time
• any way
• anyway
• anyway 与 any way
• apart from
• apology
• apparent
• appeal
• appear
• apply
• appraise
• appraise 与 apprise
• appreciate
• apprise
• approve
• approve of
• approve 与 approve of
• a quick study