written of the textbook 教科书编写
If you've picked up any textbook written in the last hundred years or so, chances are they published it.
只要你拿起过去一百年来任何一本教科书,很有可能就是他们出版的。
I just read a school textbook written about Venice, in addition to know that Venice was the Watertown and there is no other impression of.
而我只是在中学的课本中读过一篇有关威尼斯的文字,除了知道威尼斯是水城,再也没有别的印象了。
Then you open up your economics textbook written by an author living in Massachusetts, published by a company located in Texas, and printed on paper made from trees grown in Oregon.
到了课堂,你翻开了教科书,而这本教科书是由一个住在Massachusetts的人编写,经一个德克·萨斯经出版公司发行,并用Oregon种出来的树制成的纸张印刷的。
Convention, OK, this negative sign is just a pure convention. You just got to use it all the time. If you use an old textbook, written when I was taking thermodynamics, they have the opposite convention, and it's very confusing. But now we've all agreed on this convention, and work is going to be with the negative sign here.
系统对外界做功的符号为负,这就是我们,在本课中的规定,纯粹出于统一符号的需要,有些教科书中,可能会使用相反的符号规定,注意不要混淆了,这门课上,我们将一直使用。
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