1. (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.

    e.g. 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。
    e.g. Air will compress but the brake fluid won't.
           空气会压缩，但是刹车油不会。

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

    e.g. He never understood how to organize or compress large masses of material...
           他从来就不懂如何对大篇的材料进行整理或精简。
    e.g. 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. 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.

u0039u0031u0031u67E5u8BE2u00B7u82F1u8BEDu5355u8BCD

    e.g. The four debates will be compressed into an unprecedentedly short eight-day period...
           这4场辩论将被压缩到短短8天的时间，这是前所未有的。
    e.g. Some courses such as engineering had to be compressed.
           有些课程，比如工程学，必须减少课时。

4. (用以退烧的)敷布，压布
    A compress is a pad of wet or dry cloth pressed on part of a patient's body to reduce fever.

    e.g. Sore throats may be relieved by cold compresses.
           喉咙痛用冷敷布敷一下可能会好一些。