家蚕
近义词与同义词
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the commercially bred hairless white caterpillar of the domestic silkworm moth which spins a cocoon that can be processed to yield silk fiber; the principal source of commercial silk
基本解释
昆虫，幼虫灰白色，吃桑叶，蜕皮四次，吐丝做茧，变成蛹，蛹变成蚕蛾。蚕蛾交尾产卵后就死去。幼虫吐的丝是重要的纺织原料。也叫桑蚕。