And one thing I would strongly suggest is to form some sort of study groups, either formally or informally.

我强烈建议大家建立一些学习小组,正式的或非正式的都可以

耶鲁公开课 - 心理学导论课程节选

So I would highly suggest for everybody in the world to speak at least two languages.

所以我向这个世界上的所有人强烈建议，至少要懂两种语言。

必须掌握两门语言 - SpeakingMax英语口语达人

Probably the best book written on this, particularly on the language of the domestic slave trade, is Walter Johnson's book called Soul by Soul, a book-- I highly recommend you read it sometime in your reading lives.

也许有一本书描写这点最生动,特别是在记述国内奴隶贸易的语言上,是沃尔特·约翰逊所著的,《灵魂的灵魂》这本书,我强烈建议在你的读书生涯中加进这本书

耶鲁公开课 - 美国内战与重建课程节选