The more stress you are under, the more likely you are to catch a cold.

你所受的压力越大，越有可能患感冒。

《柯林斯英汉双解大词典》

They were 50 percent less likely to catch a cold if they took a daily dose of vitamin c.

如果这些人每天食用一定剂量的维生素，他们得感冒的几率会降低50%。

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Merely being exposed to a new cold virus, however, is not enough for a person to catch a cold, since a strong immune system can successfully fight off some new viruses.

然而，仅仅是接触到一种新的感冒病毒并不足以导致一个人患感冒，因为强壮的免疫系统能够成功地战胜一些新病毒。

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And you have to know that when Intel and Seagate sneeze, Microsoft is going to catch a cold.

FORBES: Microsoft: With PC Demand Weak, Estimates Start To Slip

You need prolonged and close contact to catch a cold.

BBC: Image of a boy sneezing

The platform was packed - not only with the fortunate passengers who had their Willy Wonka-esque burgundy and gold tickets, but also with steam enthusiasts who had braved the bitter cold to catch a glimpse of this majestic train.

BBC: Steam train returns to London Underground - 150 years on