她还出版了一本书《宝宝手语基础》，不仅给家长们列出了60个常用的手语，还为他们提供了简单易懂的使用方法。
She published a book for parents called "Baby Sign Language Basics" with easy instructions on how to gesture 60 popular words.
为便于计算进口税额，本书编制了《进口税计税系数表》，其使用方法举例如下。
To facilitate easy calculation, we compiled tables of import tax coefficients for reference. The following are the exemplary usage methods.
此外，本书还介绍了一些Visual Fortran工具的使用方法。
In addition, the book also describes some of the Visual Fortran tools are used.
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