He flexed his stiff arm slowly.

他慢慢地弯曲他那僵硬的手臂。

youdao

The multifinger caliper tool string to be used for casing inspection was centralized using the combination of a strong, optimally placed, spring loaded roller and stiff arm centralizers.

用于检查套管尺寸的多触点井径测量工具管串，采用结实的、安放位置经过优化的、弹簧加载的滚子及刚性臂扶正器进行居中。

youdao

Physical expression will be limited and stiff, with few arm and hand movements.

肢体语言很拘束，僵硬，手臂和手不怎么动。

youdao

He joined her on the floor, wrapping a stiff arm around her shoulders.

NEWYORKER: The Yellow

Although there is a possibility that educational prosperity could get the stiff arm, while the federal and several provincial governments hand out benefits from their surplus budgets it is unlikely.

ECONOMIST: Letters