adv. 向后；倒转，相反；（时间上）回溯；倒退，每况愈下
backwards and forwards来回地
1.The writing sloped backwards.
那字迹向后斜了。
2.I lost my balance and fell backwards.
我没有站稳，仰面摔倒。
3.She must know the play backwards by now.
她现在对这个剧本肯定是倒背如流。
4.Early 20th-century biologists came to a similar conclusion, though they qualified it in terms of probability, stating that there is no reason why evolution cannot run backwards.
20世纪早期的生物学家也得出了类似的结论，不过他们从概率的角度对其进行了限定，称没有理由可以说明进化不能倒退。
5.For the better part of a century, most biologists have been reluctant to use those words, mindful of a principle of evolution that says "evolution cannot run backwards".
在大半个世纪里，大多数生物学家都不愿使用这些词，因为他们牢记着一条进化论的原则，即“进化不能倒退”。
6.Life can only be understood backwards, but it must be lived forwards.
只有向后看才能理解生活，但要生活好，则必须向前看。
7.'Ambulance' is written backwards so you can read it in the mirror.
ambulance是倒着写的，以便在镜中认读。
8.The Mole fell backwards on the snow from sheer surprise and delight.
鼹鼠莫尔又惊又喜，向后倒在雪地上。