As a nationally recognized standard of achievement, passing an AP course is a mark of success for both students and schools.

作为全国公认的成就标准，通过 AP 课程对学生和学校来讲都是成功的标志。

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During the course of this exhaustive study, Reznikova has grown so attached to her laboratory ants that she feels she knows them as individuals—even without the paint spots used to mark them.

在这项详尽的研究过程中，雷兹尼科娃对她实验室里的蚂蚁产生了如此强烈的依恋，以至于她充分了解每一只蚂蚁——她甚至不需要用颜料斑点来标记它们。

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Of course, companies with huge mark-ups over their raw costs are more vulnerable to being undercut by discounters.

当然，成本利润率高的企业更容易被折扣店抢走生意。

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So far, the course Mark has set has been so wildly successful that, in only 6 years, he has built the second most popular web site in the world.

FORBES: Ignore The Screams--Facebook's Aggressive Approach Is Why It Will Soon Become The Most Popular Site In The World

The king of tortured tech souls is, of course, Mark Zuckerburg.

FORBES: Connect

There is an old joke--attributed, of course, to Mark Twain--about the difference between a taxidermist and a tax collector: The taxidermist takes only your skin.

FORBES: Washington's Hidden Taxes