学习词汇是学习语言最基本的手段，也是运用语言的先决条件。
Studying of words is the most fundamental means for language studying and also the precondition of language application.
这些功能虽然是通过各种手段完成的，但最基本的手段还是语言。
Although these function is complete through various way, the most standard way is still a language.
几年前，麻省理工学院的心理学家丹·艾瑞里(Dan Ariely)做了一个非常有趣的实验来考察对付拖延症最基本的外部手段之一：截止期限。
A few years ago, Dan Ariely, a psychologist at M.I.T., did a fascinating experiment examining one of the most basic external tools for dealing with procrastination: deadlines.
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