He indicated the door with a sweep of his arm.

他一挥胳膊指向门。

《牛津词典》

He moved nearer the edge, stood up, and with a vigorous sweep of his arm, cast out the line.

他走到水边，站起身，用力挥动手臂，将钓鱼线抛了出去。

youdao

Its muscles are such that it is quits incapableof moving at a speed of over a kilometer an hour even over the shortest distances and the swiftest movement it can make is a sweep of its hooked arm.

她的肌肉不能让他哪怕在很短的距离以内以每小时一公里的速度移动。 它能做的最敏捷的动作就是挥一挥它弯曲的胳膊。

youdao

Minna invited him inside with a slow-motion sweep of her arm.

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