1.
writer's cramp( pain or stiffness in the hand,caused by writing for a long time)
书写痉挛（因长久书写引起手部的疼痛或强直）.
2.
For how long may I keep books?
书籍可以借出多久？ ?
3.
But it was written a long time ago.
但是这是很久之前的书。
4.
The leaves of the book were yellowing with age.
书叶因年久而发黄。
5.
How long can I keep the book?
这本书我能借阅多久？
6.
Books do not last forever.
图书不能永久保存。
7.
How long has Mark been occupied in writing his new book?
马克写新书有多久了？
8.
How long does the lesson last?
这节课（或这课书）上多久？
9.
The leaves of the book were yellowed with age.
书页因年久而变黄。
10.
All books are divisible into two classes: the books of hour, and the books of all time.
所有的书可以分为两类：时兴的书和永久的书。
11.
permanent secretary to the president; permanent address; literature of permanent value.
总统的永久秘书；永久地址；具有永久价值的文学作品。
12.
This book meets a long-felt want, ie has been needed for a long time.
这本书满足了盼望已久的需要（长久以来就需要有这样的书）.
13.
"By buying ten books every month, he soon accumulated a good library."
他每月买十本书，不久便集成一个丰富的藏书库。
14.
By buying ten books every month, he soon accumulated a library.
他每月买10 本书，不久便有了丰富的藏书。
15.
The information in this book is up the creed because it was written so long ago.
这本书成书已久，故其中的信息是错误的。
16.
The boy soon lost himself in the book.
这男孩不久便专心地看起书来。
17.
Holding your pencil too tightly for too long often gives you writer's cramp.
笔拿得太紧、太久，常引起书写疼痛症。
18.
The book might come out in paperback soon.
这本书不久可能以平装本出版。