A backward movement or look is in the direction that your back is facing.
双语例句
例：
He unlocked the door of apartment two and disappeared inside after a backward glance at Larry.
他打开2号公寓的门，向后瞥了拉里一眼，然后走进去就不见了。
2.?退步的
If someone takes a backward step or a step backward, they do something that does not change or improve their situation, but causes them to go back a stage.
双语例句
例：
The current US farm bill, however, is a big step backward.
然而，目前的美国农业法却倒退了一大步。
3.?落后的
A backward country or society does not have modern industries and machines.
双语例句
例：
We need to accelerate the pace of change in our backward country.
我们应当为我们这个落后的国家加快变革的步伐。
4.?愚钝的 , 学习吃力的
A backward child has difficulty in learning.
双语例句
例：
research into teaching techniques to help backward children.