John Dunlosky, a professor in the US, suggests that "you start by reading a textbook with your favorite pens and colors, and then write down the important ideas on small cards while doing so you actually try to test yourselves on them."

美国教授约翰·邓洛斯基建议：“先用你最喜欢的笔和颜色阅读课本，然后把重要的想法写在小卡片上，这样做实际上是自我测验。”

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But he also liked wearing a gas mask while doing so.

但他也喜欢骑车的同时带一个防毒面具。

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The key is to show them your best, but remain truthful while doing so.

秘诀就是真诚地展示你最好的一面。

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And so while there are signs that some of the things that the president is doing are starting to have effect, these problems did not get made overnight.

VOA: standard.2009.03.15

Right, so the fact that everything is indented means while 2 we're doing, while the variable is not equal to 2, keep doing this.

事实上缩进意味着,如果变量不等于，就重复我们现在所做的这个过程。

哈佛公开课 - 计算机科学课程节选

I then assign thankful true, if so, but notice this little trick: -- I'm going to keep doing this while I am bang thankful -- bang exclamation point means "not," so this is shorthand, sort of clever elegant notation for "while I'm not thankful, keep doing this."

然后我给thankful赋true值，如果是这样，注意这里有个小技巧：,我将一直这样做，当我用满意时-,感叹号在这里的意思是“非“，这是一个可速记的，有几分机灵优雅的符号,用来说明：“当我不满意，保持这样做“

哈佛公开课 - 计算机科学课程节选

But we ought to be careful not to vilify this profession while doing so.

CNN: The courage of teachers

While doing so, the Colorado is fired upon by the USS Illinois, and is left for dead.

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More than half of all Workampers work to supplement their retirement income and travel while doing so.

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