PHRASE 达摩克利斯之剑;随时可能发生的危险 If you say that someone has the Sword of Damocles hanging over their head, you mean that they are in a situation in which something very bad could happen to them at any time. 达摩克利斯之剑;随时可能发生的危险 [literary]
As a Grand Prix driver, you have the Sword of Damocles hanging over your head at every moment.