backwards
adv
ˈbækwədz adv
1 in the direction that is behind you 向后地，倒退地;
Hannah took a step backward.
汉娜往后退了一步。
She pushed me and I fell backwards into the chair.
她推了我一下，我便往后倒在椅子上。
2 towards the beginning or the past 往回，往前面;
Count backwards from 100.
从 100 倒数。
3 with the back part in front 前后反过来
Your T-shirt is on backwards.
你的 T 恤衫前后穿反了。
4 towards a worse state 倒退地，退步地，每况愈下地;
The new measures are seen by some as a major step backwards.
新举措在有些人看来是一个很大的倒退。
5
backwards and forwards
first in one direction and then in the opposite direction, usually many times 来回地，忽前忽后地
Kip stumbled backwards and forwards before falling down.
基普前后摇晃了几下，摔倒了。
6
bend/lean over backwards (to do sth)
to try as hard as possible to help or please someone 拼命（做某事），竭尽全力（做某事）〔指为了帮助或取悦某人〕
City officials bent over backwards to help downtown businesses.
市政府官员竭力帮助发展城区的商业。
7
know sth backwards know sth backwards and forwards
， to know something very well or perfectly 对某事了如指掌，熟知某事 BrE AmE
She practiced her part until she knew it backwards and forwards.
她反复练习自己演的角色，直到非常熟练。