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1. The spider center is a crucial part of the web that holds the other threads together.
蜘蛛中心是网中至关重要的部分，它连接着其他线。
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2. The spider center is where the spider spins its web.
蜘蛛中心是蜘蛛织网的地方。
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3. The spider center is also known as the spinnery, where the spiders spin their silken threads.
蜘蛛中心也被称为纺丝器，是蜘蛛织造丝线的地方。