Another effective technique flirting is a light touch: the arm to shoulder to elbow.

另一个很有效的调情技巧是轻微的接触：从胳膊到肩膀再到眉毛。

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She led him to an armchair, with her arm round his shoulder.

她把他领到扶手椅上，手臂搂住了他的肩膀。

《柯林斯英汉双解大词典》

You can't place to a yard by means of shoulder and arm energy alone.

你不能独自用肩和臂的力量将某物推进一码。

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These devices use rope-like material to carry movement from the shoulder to the prosthetic arm.

VOA: special.2009.03.10

But that can lead to shoulder pain and permanent swelling of the arm.

VOA: special.2011.03.23

The rotator cuff, a group of tendons and muscles connecting the upper arm to the shoulder blade, is also important to paddling.

WSJ: For the Love of Surfing and Wine Country

Once I got into the groove with my physical body, breath, and mind in tune with each other and my arms warmed up, I was able to hone in on arm and shoulder technique to make sure that they were getting maximum extension and rotation so that my stroke would be strong and efficient.

FORBES: How Cross-Training Can Make You A Better Swimmer: What Is The Best Technique Of Swimming The Crawl?

By rewiring a missing arm's motor nerves to muscles in the remaining stump, shoulder or chest, for example, and rewiring the arm's sensory nerves to the skin in these regions, a channel is opened to the part of the brain that once controlled the missing limb.

ECONOMIST: Rewiring nerves