When the auto enters the highway system, a retractable arm will drop from the auto and make contact with a rail, which is similar to those powering subway trains electrically.

当汽车进入高速公路系统时，一只可伸缩的手臂将从汽车上落下，与轨道接触，这类似于为地铁列车供电的轨道。

youdao

If the reaction of the person becomes emotional, then it is possible to make contact with them, touching them gently on the arm or shoulder.

如果人的反应变为情绪上的，那你就可以接触他们，轻轻碰触他们的手臂和肩膀。

youdao

Offer her your arm. It's chivalrous and also a good way to initiate contact.

让她挽着你的手臂。这是一个骑士风度，是一个主动接触的好方法。

youdao

The second came 18 minutes into the second half when Kightly whipped in a cross from the right and Wilson's arm made contact with the ball but neither referee Howard Webb or his assistant saw the misdemeanour and awarded Wolves a corner.

BBC: Wolves 0-1 Portsmouth

Then instead of immediately asking for time, Reyes flashed a lot of movement with his arm and hand, reducing contact with the base to just the fingers at one point, as he tried to readjust himself and move his foot to the base.

FORBES: Reyes is Poster Boy for Mets Mediocrity

As such, they stood close to one another, maintained strong eye contact, touched one another on the arm, and smiled often during their workplace conversations.

FORBES: How to Read Business Body Language Like a Pro - 1st Tip