And the force is perpendicular to the arm.

力是垂直于杆。

youdao

Their hands held tight my arm while signing, thought a break open by force.

他们双手立时抓住我的手臂，想一把扭开。

youdao

Their hands held tight my arm while signing, thought a break open by force.

他们双手立时抓住我的手臂，想一把扭开。

youdao