那个骗子用假支票骗走了老人的积蓄。

The ___crook used fake checks to steal the old man's savings.

牧羊人的拐杖顶端有一个弯曲的钩子。

The shepherd's staff has a ___crook at the top to catch sheep.

他弯起手臂，展示他的肌肉。

He ___bent his arm to show off his muscles.