The OWF is an ideal supplementary resource for learners to engage in word-building activities during topic-based lessons.

OWF 是一个理想的补充资源，让学习者在以主题为基础的课程参与构词活动。

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Copies of many of the classical texts used by sixteenth-century teachers, including marginal notes describing the oral lessons that were based on the texts, can be found in museums today.

在如今的博物馆里可以找到十六世纪教师使用的许多经典文本的副本，包括描述基于文本的口语课程的旁注。

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Based on the lessons we've been telling if I say *, you know what I have a computer.

基于我们讲过的课程，如果我指明，我有一台计算机。

哈佛公开课 - 计算机科学课程节选

Many of its recommendations are based on lessons painfully learned in Iraq and Afghanistan.

ECONOMIST: The Quadrennial Defence Review

Internet-based video lessons are great to help the schoolteacher, the home schooler, or the tutor to teach with more effectiveness, but it takes a relationship with a real teacher to educate deeply.

FORBES: No PhD Required

Pediatrix in 2009 launched a "100, 000 Babies" campaign in 125 hospitals, aiming to improve the system of care for 100, 000 babies in NICUs around the country, based on lessons learned in earlier quality programs.

WSJ: How Hospitals Save More Lives and Reduce Infections in Premature Babies