她身高3英尺，双手叉腰。

She stood three feet high and her hands rested on her hips.

我只是站在这里，两手叉腰，什么都没干。

I'm just standing here with my thumb up my butt.

她摆出一个姿势，一只手叉腰，另一只手挥动着一支假想的香烟。

She struck a pose, one hand on her hip and the other waving an imaginary cigarette.

偶尔出来‘打酱油’，没事练练‘叉腰肌’，在某桥上做做‘三个俯卧撑’。

I occasionally 'Buy Soy Sauce' outside, train 'Psoas Muscle' when I am free, and do 'Three Push-ups' on some bridge.

就“我是个天才”这个例子而言，你可能会想象自己傲视群雄，像超人那样双手叉腰站着。

So with the example "I'm brilliant, " you might imagine yourself standing tall, posing like Superman with your hands on your hips.