Differential keying

differential ['dɪfə'rɛnʃəl]

adj. 差别的;特意的;[数]微分的;[机，物]差动的; n. [数]微分;差别;工资级差;[机]差动器;

di, dif, divid 表示”分开”;”取消”,”否定”;”不同”

keying

[计] 键控

You name it, I've written it.

你说得出的 ，我都写过。

To mold clay

铸模

Other books are for reading slowly and carefully. If it is a book on a subject that you are interested in, you will want to chew and digest it. That does not mean reading it too slowly. When you pick up a book for the first time, check that it is not to

还有一些书是要慢慢地、仔细地阅读的。如果有一本书谈论的题目你很感兴趣，你就想“咀嚼、消化它”。这并不意味着要读得太慢。当你第一次拿起一本书的时候，你得检查一下，这本书不是太难读。除非从头几页书中你能看出这是一本你容易读懂的书，否则你就不要去读它。