If you receive multiple stings, it may be a sign of aggressive bees.

如果您收到多刺，它可能是一个积极的迹象蜜蜂。

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One sign of multiple sclerosis is losing the ability to speak clearly.

多发性硬化症的一个症状是不能清楚的说话。

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One sign of multiple sclerosis is losing the ability to speak clearly.

多发性硬化症的一个症状是不能清楚的说话。

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