20140530 compression 压缩

（词根）－Press 压缩

im+press 令人印象深刻

sup＋press 压抑；抑制

1. V-ERG (使)压紧;(使)压缩 When you compress something or when it compresses, it is pressed or squeezed so that it takes up less space. 

         Poor posture, sitting or walking slouched over, compresses the body's organs...
坐着或者走路的时候低头垂肩，这种不正确的姿势会压迫体内的器官。

2. VERB 使简练;缩短 If you compress something such as a piece of writing or a description, you make it shorter. 

All those three books are compacted and compressed into one book.
那三本书的内容全都压缩进一本书了。

3. VERB 压缩，缩短(时间) If an event is compressed into a short space of time, it is given less time to happen than normal or previously. 

Some courses such as engineering had to be compressed.
有些课程，比如工程学，必须减少课时。