So, what happens is the UCS and the CS, the bell and the food, go together because they happen at the same time.

发生的事情不过是,无条件刺激与条件刺激，铃声与食物，因为恰巧同时出现而联系在了一起。

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And Gray was working on the telephone at the same time that Bell was.

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The office ordered the money repaid, which for a time put Bell in danger of filing for bankruptcy.

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Also halted for a short time after the bell was Lihir Gold, Australia's second biggest gold company.

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