You can use a simple notebook, some white paper or a diary.

你可以用记事本，日记本或者几张白纸来记录。

youdao

You don't need fancy software or tools, just a simple notebook and pen, or a trusted spreadsheet program.

你不需要什么特别的软件或工具，你只需要一本简单的笔记本和一支笔或可信的电子数据表。

youdao

You can help your child track his or her distances in a simple notebook or on the computer. Just write down the date and the estimate of the distance.

你可以帮助你的孩子在一个简单的本子或者电脑上记录每次跑步的距离，仅仅日期和每次的估计里程就足够。

youdao

With one slight exception, perhaps of at least curiosity interest to Mathematica aficionados: he suggested that cells in Mathematica notebook documents (now CDFs) should be indicated not by simple vertical lines but instead by brackets with little serifs at their ends.

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