silk cocoon 蚕茧
cocoon stage 茧期
protective cocoon 保护性外壳
spin a cocoon 结茧
cocoon oneself 自我封闭
1. The caterpillar forms cocoons before becoming a butterfly.
毛毛虫在变成蝴蝶前会结茧。
2. The silk cocoons are carefully collected by farmers.
蚕茧被农民仔细收集起来。
3. He cocooned himself in his room all weekend.
他整个周末都把自己封闭在房间里。
4. The pupae remain inside cocoons until they mature.
蛹在茧中待到成熟为止。
A: What are cocoons used for in nature?
A：自然界中的茧有什么作用？
B: Cocoons protect insects during their development stage.
B：茧在昆虫发育阶段起保护作用。
1) 指昆虫形成的保护性外壳
2) 比喻人自我隔离或封闭状态
3) 网络语境中指“舒适圈”或保护环境
1. 茧；蚕茧；昆虫的保护外壳
e.g. The silkworm spins cocoons before metamorphosis. 蚕在变态前会结茧。
noun / verb
1. a protective case spun by insects such as silkworms; also to enclose or isolate oneself as if in a cocoon.
Synonym: shell, covering, wrap