Silk is made from cocoons spun by silkworms .

丝绸是用蚕所织的茧而制造的。

It is made from silkworm cocoons .

它是由蚕茧制成的。

About fifteen yards from the gate was the gloomy row of sheds where the cocoons were stored .

离厂门四五丈远，是那茧子间，黑的一排洋房。

Nests and cocoons provide security for wildlife .

巢和茧为野生动物提供了安全保障。

Cocoons mission introduced in revelation chapter .

消灭虫茧的任务将会在启示录章节中出现。