You hold the lower nut with one spanner while you undo the top nut with another one-do you see what I mean?

你用板手固定住下面螺母，同时用另外一把扳手拧开上面螺母，你明白的意思吗？

youdao

You hold the lower nut with one spanner while you undo the top nut with another one - do you see what I mean?

你用板手固定住下面螺母，同时用另外一把扳手拧开上面螺母，你明白的意思吗？

youdao