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“有一种灰白色的幼虫,有我们的小指那么大,人们把它们养起来,让它们制出许多茧子,丝质品便是从这种茧子中得来的。这种虫叫蚕。在几间极清洁的房间里,人
”There is an off-white larva with the size of our little finger, and people raise them so that they produce a lot of cocoon, from which silky goods are derived. Very clean room, people