This article , from an angle of a period of class, elaborates the charm of teaching language through the design of lead-in of the text, transition, question, …

本文从一堂课的角度，阐述如何通过导课、过渡、设问、讲解和总结等五种教学语言的设计，体现教学语言的魅力，重现语文的灵气和活力。

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Travel was arduous and costly throughout the period, possible only for a privileged class—the same that produced gentlemen scientists, authors, antique experts, and patrons of the arts.

这整个时期里的旅行是艰辛、昂贵的，可能只有享有特权的阶级才能旅行，同样也是这个阶级造就了有教养的科学家、作家、古董专家和艺术赞助人。

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The exoplanet belongs to a new class of zippy exoplanets called ultra-short-period planets (USPPs), which have orbits of less than a day.

这颗外行星属于能够快速移动的外行星的一个新类型，被叫做超短周期行星(uspps)，这类行星公转一周都少于十天。

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We put them on an education assembly line every day, starting with one station that teaches them a certain subject before automatically moving them to the next class after a certain period of time.

FORBES: Rethinking Education: Why Our Education System Is Ripe For Disruption

Hence, in order to ensure effective literacy skills acquisition by learners, the KGALP provides participants with free and adequate learning materials, basic stationery and obligates them to attend classes three times a week (on average, each class is three hours long) over a period of six months.

UNESCO: Kha Ri Gude (Let Us Learn) Adult Literacy Programme (KGALP)

The West is doomed to a long period of austerity, as the middle class is squeezed and governments curb spending.

ECONOMIST: Frugal ideas are spreading from East to West