After a few seconds, when the X-15 was safely away, the pilot started its rocket engine.

VOA: special.2010.07.07

The Book of the Month Club was a mail-order book club that started in 1926 and it became an incredibly powerful engine for selling books, just as Oprah's Book Club is today.

月读书友会是一个创立于1926年的邮购书友会6,是图书销售的强大引擎，正如今天的奥普拉书友会一样。

耶鲁公开课 - 1945年后的美国小说课程节选