1. Unlike other molluscs , bivalves lack a radula and feature labial palps, which carry food from the gills to the mouth.
与其他软体动物不同的是，双壳贝缺乏齿舌，具有唇瓣，可将食物由鳃送到口部。
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2. They have no skeleton, instead relying on an internal mantle that supports and shapes the head, while a specialized radula deep in the throat shreds food in preparation for digestion.
他们没有骨骼，靠体内的一层套膜支持头部的重量和形状。喉咙深处的齿舌负责撕碎食物，帮助消化。
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3. They have no skeleton, instead relying on an internal mantle that supports and shapes the head, while a specialized radula deep in the throat shreds food in preparation for digestion.
他们没有骨骼，靠体内的一层套膜支持头部的重量和形状。喉咙深处的齿舌负责撕碎食物，帮助消化。
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4. toxoglassate radula
弓舌齿舌
-- 来源 -- 英汉 - 翻译参考[网络]
5. taenoglossate radula
纽舌齿舌
-- 来源 -- 英汉 - 翻译参考[网络]
6. rachiglossate radula
峭舌齿舌
-- 来源 -- 英汉 - 翻译参考[网络]
7. A structure at the base of the mouth of most mollusks over which the radula is drawn back and forth in breaking up food.
