和霸王龙比赛掰手腕，有很严的规则，吃了对手这种事是绝对不允许发生的。

Right. This is a sanctioned match, and killing your opponent is strictly against the rules.

首先介绍了掰手腕机器人系统的整体结构，然后引入专家系统控制，最后讨论了在此基础上的实验和结果。

First, the whole architecture of our AWR system is displayed, then, expert system control is imported. Finally, the experiment and result in AWR system are discussed.

我抓起她的手腕，她的手腕软弱无力。

I picked up her wrist. It was limp and flaccid.

2片甘草根、掰成小块。

2 dried licorice roots, broken into small pieces.

电脑模拟显示，如果在一个恒星系统中有超过一个巨行星存在的话，它们会上演一场“重力掰手腕”比赛，这会使得它们的轨道变得不稳定。

Computer simulations show that if there is more than one giant planet in a solar system's family, they will perform a kind of gravitational arm-wrestling match, making their orbits unstable.