目录
I a history class
II a student & a librarian
III a student & a professor
IV a student & a bookstore clerk
I a history class
its definition
II a student & a librarian
(1)
The librarian was happy to help and explained to the student that the library was organized using the Dewy Decimal System.
(2)
She told the student that this particular system of categorizing books broke the book categories down into ten broad areas.
(3)
The librarian told the student that after she determined what category her book fell under, she should locate the card catalog.
(4)
The librarian continued to explain that, within the card catalog, each of the ten categories was further broken down into subcategories.
5
The student looked up her book number in the card catalog, wrote down the number on a slip of paper, and located the book on the shelf.
III a student & a professor
(1)
She had been lagging behind in her studies and had missed quite a number of classes.
lag behind落后；拖欠
(2)
The student then proceeded to ask if she could be given special consideration and receive a good grade despite not performing well in class.
(3)
The professor was not impressed with her question and told her that she was forcing him to consider making an unethical decision.
unethical adj.不道德的，不合乎道德标准的（尤指职业道德）
(4)
He told her that the only way she could go forward and learn from this experience was to take responsibility for her actions and work harder in class.
IV a student & a bookstore clerk
(1)
The clerk told the student that she'd asked to make a deferred payment but they'd never received her money.
a deferred payment 延期付款
(2)
The student was suddenly very apologetic since she had forgotten that what she'd really paid for through the mail was a set of folders, not the two textbooks.
(3)
She offered to put the book back in order to have enough money to pay for the previous two.
