retro-表示“向后,倒退”

retrograd

//后退,倒退(retro+grade 走→向后走)

retrogress

//倒退,退化(retro+gress 走→向后走)

retrospect

//回顾,回想(retro+spect 看→向后看)

retroaction

//倒行,反动(retro+action 行动→向后行动→倒行逆施)

retroject

//向后投射(retro+ject 扔→向后扔)

retrovert

//把….翻转;使倒退(retro+vert 转→向后转→侄退)