Touch the person lightly on the arm or shoulder when you're talking.

当你们在谈论时，轻轻地触碰他人的手臂或者肩膀。

youdao

When a man tells a story and you agree with him, lightly touch him on the arm as you share that you understand.

如果男人讲了一个故事，而你与他观点一致，就轻轻碰碰他的胳膊，以表示你理解他。

youdao

I felt someone touch me on the arm.

我感到有人触摸我的臂。

youdao

In other words, you're looking at a future in which robotic hands interpret the nuances of a surface or gripped object akin to a human fingertip and artificial skin senses touch similar to the way tiny hairs on an arm do.

ENGADGET

BeoPlay H6 has anodized aluminium on the adjustable slider arm and cover plate to complete the design with a final vibrant touch.

ENGADGET: B&O Play H3 and H6 bring Bang & Olufsen's newer badge to headphones