They were suddenly afraid.

他们突然间感到很害怕。

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Suddenly,Olive saw that Nate was also afraid fearful that the cow's struggle would be too much for him alone.

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Or in 2005, when we were suddenly afraid to eat a hamburger for fear of Mad Cow disease?

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I'm suddenly afraid we've done him in.

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Is it just me or are you suddenly very afraid of the state of Minnesota?

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