They develop a fever and a watery discharge from their eyes.

他们开始发烧，且有一种水状分泌物从他们的眼睛里流出。

《柯林斯英汉双解大词典》

Up to half the people who get swine flu never develop a fever, and some suffer from gastrointestinal.

有多达一半的猪流感患者并不发烧，而有些人除了常规的流感症状还出现了胃肠症状。

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Discontinue use immediately and consult your physician if you develop a fever or dry cough, or have difficulty breathing.

如果出现发烧或是干咳，或是呼吸困难，立即停止使用并就医。

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