The silkworms have gone into the bushes to spin their cocoons.蚕上山了.Silkworms make cocoons.蚕做茧。Many species of earthworms produce cocoons through the year.许多种蚯蚓全年产茧....

n.茧，蚕茧( cocoon的名词复数 )v.茧，蚕茧( cocoon的第三人称单数 )...

cocoons的音标：...