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地中海中有一种能吐丝的贝壳叫江珧(音“摇”)。这种小贝壳会像蚕一样吐出细细的丝,并用这细丝把自己固定在水中的物体上,或用细丝裹着小石片或
There is a kind of shell in the Mediterranean that can shed silk. This small shell will spit like silkworm thin silk, and use the filaments to fix themselves in water objects, or wrapped in small pieces of stone tablets or