前后摆动 meaning in English

heel and toe
reciprocating

The shutter kept banging to and fro in the wind , so we nailed it back against the wall
窗子在风中前后摆动噼啪响，我们把它反钉到墙上了。
The colorful rays appear to change in hue and color as the sample is tilted back and forth
当以水平方向前后摆动图案时，会出现不同色调及色彩。
As the work is not completed yet you ca n ' t swing your hands and ignore it . 1 as the work is not completed yet you ca n ' t wash your hands of
解释：这句话的“甩手”不是原义“前后摆动手”的意思，而是比喻意义，即“扔下工作或事情，不管不问” 。