It didn't come as a shock to learn that the fuel and cooling systems are the most common causes of breakdown.

不足为怪的是，燃料和冷却系统是故障的最常见原因。

《柯林斯英汉双解大词典》

Shock, bradycardia and irregular breathing are important predictive signs, and severe malaria with respiratory distress is a common cause of hypoxaemia.

休克、心动过缓和呼吸不规则是重要的预示性症状，伴有呼吸窘迫的严重疟疾是低血氧症的常见原因。

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Respiratory failure and refractory shock have been the most common causes of death.

呼吸衰竭和难治性休克属于最常见死因。

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But a common complaint among users is the sticker shock that they get after seeing the bill once the ride is over.

FORBES: An 'Uber' Problem for Cities: Balancing Innovation with Regulation

For one thing, even the crisis in Georgia has not been enough to shock the EU into a common position on Russia.

ECONOMIST: Europe frets about its place in a different world order

Peanuts are the most common food trigger of life-threatening anaphylactic shock, accounting for more than half of all fatal food-induced allergic reactions.

CNN: Kids with nut allergies feel teased, excluded