cocoon

• 许多昆虫的幼虫吐丝结成以保护蛹的壳，也指蜘蛛为保护卵而织的丝质囊状物。

A silky envelope spun by the larvae of many insects to protect pupas and by spiders to protect eggs.

1. Silky protective coveringB1formal

   A silky case spun by the larvae of many insects, such as moths and butterflies, to protect the pupa, and also by spiders to protect their eggs.

   丝质保护性覆盖物

   • The caterpillar spun a cocoon around itself before transforming.
   • Spiders often create a cocoon to safeguard their eggs.
   • Inside the cocoon, the insect undergoes metamorphosis.

   同义词chrysalis

2. Safe or protective environmentB2informal

   A place or situation that provides safety, comfort, or isolation from the outside world.

   保护壳

   • Her home was a warm cocoon away from the stress of work.
   • He lived in a cocoon of privilege, unaware of the struggles of others.
   • The small town felt like a cocoon, safe and familiar.

   同义词bubblehavennestrefugeretreatsanctuaryshelterwomb

• 动词，指像茧一样紧紧地包裹或包围某人或某物，使其受到保护；也指将人隔离、保护起来，使其与外界隔绝。

A verb meaning to wrap or enclose something or someone tightly, as if in a protective covering, or to isolate or shelter from the outside world.

1. Retreat for safetyB2informal

   To withdraw or isolate oneself from the outside world, often to feel safe or protected from stress or danger.

   自我封闭

   • After the stressful week, she decided to cocoon at home with a good book.
   • He cocooned himself in his room to avoid the family argument.
   • Many people cocoon during the winter months, staying indoors and avoiding social events.

   同义词cloisterensconcehole upinsulateisolatesecludesequestershut awaywithdraw

   反义词confrontengageinteract

2. Wrap protectivelyB2formal

   To envelop or cover something or someone completely, as if in a protective shell.

   包裹

   • The mother cocooned her baby in a warm blanket.
   • The fragile artifact was cocooned in layers of bubble wrap for shipping.
   • The caterpillar cocoons itself before transforming into a butterfly.

   同义词bundle upencaseenfoldenvelopmufflesheatheswaddlewrap

   反义词exposerevealuncoverunveil