Wearing a seat belt can reduce your chance of death or serious injury by more than half.

系好安全带可以减少一半以上的死亡或重伤的几率。

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An internal head injury is usually more serious because the skull serves as the protective helmet for the delicate brain.

而闭合性损伤通常是更严重的，因为颅骨就像一个头盔一样，保护着我们精密的大脑。

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For example, most of us would agree that, if we can save someone from serious injury by lying, then we have more of an obligation to save someone from injury than we do to tell the truth.

例如，我们都会同意如果我们能够通过撒谎而使某人不至受伤，那么使人免受伤害的义务就比说实话的义务更重要。

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Concussions can be mild, but doctors may order a CT scan to look for a more serious injury.

VOA: special.2009.10.28

While Bothroyd's knee injury looks more serious as he was forced off half way through the first half to be replaced by Ross McCormack.

BBC: Injury concern for Cardiff trio

However, this time the injury is more serious and Dr Orava gave a bleak outlook of Beckham's hopes of returning in time for the World Cup, explaining that it would likely to be the middle of June before he can resume training and at least another month before he can return to action.

BBC: David Beckham set to miss World Cup with injury

Bryant said the injury was far more serious than any he'd sustained before.

WSJ: Ruptured Achilles Ends Bryant's Season