看到这么多狗突然同时出现，这只孤僻狗大吃一惊，它本能地退缩了一下，龇牙咧嘴，发出阵阵低沉的吼声。

Suddenly facing so many dogs at the same time, Lonely was startled. He shrank back instinctively, showed his teeth, and howled in a threatening low voice.

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这项发现可能还能帮助更好地理解癫痫症：在癫痫发作时，大脑有趋向突然同时被触发，而偏离临界点就能解释这一点。

The work might also help us understand epilepsy better: in an epileptic fit, the brain has a tendency to suddenly fire synchronously, and deviation from the critical point could explain this.

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突然，莉莉和露西同时想到了一个主意。

All at once, an idea came to Lily and Lucy at the same time.

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