shield

• 名词，指用于抵挡攻击或防止伤害的防护装置或覆盖物，包括手持的盾牌、护甲，或某些生物体坚硬的背甲。

A noun referring to a protective device or covering used to intercept attacks or guard against harm, including armor carried on the arm or a hard outer casing of certain organisms.

1. Protective covering or structureB1formal

   A device or structure used to protect against harm, damage, or unwanted influence.

   防护装置或结构

   • The riot police carried shields to protect themselves.
   • A heat shield protects the spacecraft during re-entry.
   • The building has a radiation shield around the reactor.

   同义词barrierbulwarkdefenseguardprotectionscreenshelter

2. Armor carried on the armB1formal

   A piece of armor held in the hand or worn on the arm, used to intercept blows or projectiles.

   盾牌

   • The knight raised his shield to block the sword strike.
   • Ancient warriors decorated their shields with symbols.
   • He used his shield to deflect the arrows.

   同义词aegisbucklerpavise

3. Hard outer covering of organismsB2formal

   A hard, protective outer layer found on certain animals, such as arthropods and turtles.

   生物体的坚硬外壳

   • The turtle retreated into its shield-like shell.
   • The crab's hard shield protects it from predators.
   • The insect's shield is made of chitin.

   同义词carapaceexoskeletonshell

• 动词，表示保护或防御某人或某物免受伤害、危险或不良影响。

A verb used to indicate the act of protecting or defending someone or something from harm, danger, or unwanted influence.

1. Protect from harmB1formal

   To protect, hide, or conceal someone or something from danger or harm.

   保护

   • The mother shielded her child from the rain with an umbrella.
   • He shielded his eyes from the bright sunlight.
   • The new policy aims to shield consumers from fraudulent practices.

   同义词coverdefendguardprotectsafeguardscreenshelter

   反义词endangerexposeimperiljeopardize

2. Suppress a thought or feelingB2informal

   To hold back or conceal a thought or feeling about something.

   压抑

   • She shielded her true emotions during the difficult conversation.
   • He tried to shield his disappointment with a smile.
   • They shielded their doubts about the plan from the team.

   同义词bottle upburyconcealhidehold backrepressrestrainsmotherstiflesuppress