Fire disastrous is very dangerous. If unchecked, human life, property will be got great loss.

火灾的危害性巨大，如果不加以控制，将会给人类生命、财产造成严重损失。

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The World Health Organisation concurred, saying that if unchecked, swine flu could affect almost a third of the population – 2 billion people.

世界卫生组织对此持相同看法，并表示如果不对猪流感进行有效防控，那么感染人群将会达到世界人口的三分之一——二十亿。

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This damage causes them to grow into abnormal lumps or tumours and spread around the body disrupting its normal processes and eventually--if unchecked--causing death.

这些破坏使健康细胞长成异常的肿块或肿瘤，扩散至全身，扰乱正常的生理过程，如不加以遏止，最终将导致死亡。

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But more red tape and higher taxes, if unchecked, risk clipping the wings of Britain's high-flying firms.

ECONOMIST: A lost opportunity

China's successes, if unchecked, will come only with diminished influence and freedoms for the United States as well as for our friends and allies.

CENTERFORSECURITYPOLICY: Center For Security Policy

If unchecked, they guarantee us a future with fewer Feynmans and Swartzes the very type of people who bring us the future not through suicide but simply through discouragement.

FORBES: A Bit Of The Future Was Lost With The Tragic Death Of Aaron Swartz