He can try his knuckles, the heel of one hand reinforced by pressure from the other hand on top of it, a tennis ball, or a back massager, using direct pressure or a firm circular motion.

他会尝试用指关节，用一只手掌根压在另一只手背上，网球，背部按摩器，采用直压按摩或圆周按摩。

youdao

The second science was the summary of his discoveries on the study of motion.

第二门科学是他在研究物体运动时发现的总结。

youdao

It was fascinating to see the canine structure in actual motion and to see the coordinated movement of the bones as a dog trotted on a treadmill and his gait was recorded continuously.

能够在实际的运动中来看犬种的结构和当狗在小跑步时来看骨骼的协调和步态并且连续的纪录下来是非常好的。

youdao

Nawab leapt on the kick-starter of his motorcycle, and in one smooth motion flicked on the lights and shot out of the threshing-floor gates, onto the quarter-mile driveway leading from the heart of the farm to the road.

NEWYORKER: Nawabdin Electrician

" Jazz on a Summer's Day " (New Yorker Video ): Bert Stern's remarkable evocation of the 1958 Newport Jazz Festival, plus a behind-the-scenes documentary of the celebrated still photographer at work on his only motion picture.

WSJ: Enjoying Movies, Minus the Multiplex

An act of pure heroism on his part sets the plot in motion, but this non-traditional film never lets us forget that it is also a violent act and, as such, has an explosive effect on everyone's life.

NPR: 'A History of Violence': A Ticking Timebomb