Together with some nearby people, I rushed up and put my hands on the young man.

我和周围人上前扭住他。

It usually takes at least two people to frogmarch one person. Bye bye.

通常这要两个人来扭住一个人双臂强行拉走他。再见。

The first guard takes Robin Hood's arms from behind and the second guard tries to hit him.

第一个守卫从后面扭住了罗宾汉膊，第二个守卫试图攻击他。

In the U.S. it's this, while in France they grab and twist their nose and in Russia they flick their throat.

在美国是这样做，在法国，他们抓住鼻子并扭住，而在俄罗斯则是用手弹喉咙。

No, 'to frogmarch' means to force someone who is unwilling to move forward or to walk somewhere, often by holding their arms tightly.

不是，frogmarch是某人不愿意往前走或是去某个地方时候，被人扭住双臂强行拉走。