1. 逆行：以轨道绕行金星的美国太空船 麦哲伦号(Magellan)利用雷达波绘制了详细的金星表面地图(上图).金星的自转或多或少有一些不寻常的地方,包括自转的速度非常缓慢,(金星的一天相当於地球的243天,略长於金星的一年),以及自转方向的 逆行(retrograde)都很奇特.此外,由於金星的自转周期和它的轨道一致,

2. 后退的：retrograde vaporization 反汽化 | retrograde 后退的 | retrograde 后退的次序颠倒的

3.

3. 退化：resent 憤狠、不滿 | retrograde 退化 | retrospect 回想,回顧

4. 后退：degrade 降格,降级 | retrograde 后退 | upgrade 升级,上升

1. 倒退的;后退的;退化的
    A retrograde action is one that you think makes a situation worse rather than better.

    e.g. The Prime Minister described transferring education to central government funding as ''a retrograde step''.
           首相称将教育投入转由中央政府拨款是“一种倒退”。

1. get worse or fall back to a previous condition

    Synonym: regressretrogress

2. go back over

    e.g. retrograde arguments

    Synonym: rehashhash over

3. move back

    e.g. The glacier retrogrades

    Synonym: retreat

4. move in a direction contrary to the usual one

    e.g. retrograding planets

5. move backward in an orbit, of celestial bodies

1. of amnesia
    affecting time immediately preceding trauma

2. moving or directed or tending in a backward direction or contrary to a previous direction

    Synonym: retral

3. moving from east to west on the celestial sphere
    or--for planets--around the sun in a direction opposite to that of the Earth

4. going from better to worse

    Synonym: retrogressive