旧书

The old book has come apart and could not be used any more.

这本旧书散开了，没法再看了。

When I asked her what she did with the comic books, she said, I throw them away.

我问她这是做什么，她说：我要把这些没有卖掉的旧书处理掉。

Among these I found a few paper-covered books, the pages of which were curled and damp: The Abbot, by Walter Scott, The Devout Communicant and The Memoirs of Vidocq.

他喜欢翻一些没有人要的旧纸堆，并在里面找到了一些书页已经发黄的旧书。

I.e. the utility of the books are almost the same , so it is a wise choice to choose second hand books. And in the aspect of consumer's surplus, the consumers expect one book to be lower than, say, 30 Yuan, so if he buys the book for 10yuan, he gets extra 20yuan as the so called consumer's surplus.

话说回来，从机会成本的角度来看，因为旧书与新书大部分相差不大，基本不会影响到学生的书籍阅读（即书的效用是几乎一样的），学生在旧书摊买书的机会成本相对较小，于是学生们是会选择到旧书摊买书的。

I have disposed of my old books.

我已处理了我的旧书。

Great portraits. And of old persons, like old dog-eared books, full of hard life which gives sweet heart in the eyes

非常好的人像片，片中的老人，就像边角都已卷起的旧书，虽然刻满生活岁月的艰辛，却在眼中流露出讨人喜欢的欢心。。。。。

It is not necessary to presume the dramatis personae who leaved message in the old book.

而我也不必再去猜这本旧书留言的主人公是谁了。

I closed the book, tears flowed out like spring, and I have no need of guessing the dramatis personae of this old message book.

我合上书，泪水如泉般涌出。而我也不必再去猜这本旧书留言的主人公是谁了。

I unfold the book , tears effuse like the conduit,and I no longer need to guess who is the dramatis personae left word on this old book .

我合上书，泪水如泉般涌出。而我也不必再去猜这本旧书留言的主人公是谁了。

Hellen wouldn't like to throw her old books away.

海伦不愿意把她的旧书扔掉。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。