also was a success. So was her next play, "Margin for Error."

VOA: special.2010.08.08

When they created margin rules that the seller had to be borrowing against securities. Just made more money when securities went up more value.

当我们发明保证金制度,卖空证券时需要交担保金,证券升值时能赚到更多钱。

斯坦福公开课 - 经济学课程节选

As far as I know -- I know of no exception, although someone may well be able to produce one no original poem in English had ever been published with line numbers in the margin in its very first printing.

就我所知，无一例外，尽管有些人能很好的制作出摹本,但英语原版诗歌从不在首次印刷的时候,把行数印在页边空白处。

耶鲁公开课 - 弥尔顿课程节选

Operating margin was 30.8% of revenue, gross margin was 40.3%, slightly beating Street expectations of 39.9%.

FORBES: Apple Earnings Miss Expectations on iPhone; Overall Performance Still Leads Industry

Gross margin for the quarter was 48.8%, operating margin was 37.2%, and net margin was 34.9%.

ENGADGET: TSMC's 28-nanometer process pays off as it rakes in $1.68 billion profit in Q3

They figure out ways to increase their high-margin work and decrease their low-margin work.

NEWYORKER: The Cost Conundrum