seal

名词

UK/siːl/
US/siːl/

定义 seal 名词

animal

  1. B2Countable

    a large marine mammal that consumes fish and spends part of its time in the sea and part on land or ice.

covering

  1. Countable

    a component fixed around the border of an opening that prevents the passage of liquid or gas.

    • Ensure the seal around your refrigerator door is cleaned regularly to maintain its airtight closure.

    • The seal on the faucet needs replacing to stop it from dripping.

    • The container’s seal is broken, so it’s no longer waterproof.

  2. Countable

    a thin layer of material, such as paper or plastic, used to cover the opening of a container that must be broken to access the contents.

    • The seal was pierced when I opened the can.

    • This product has a broken seal, so we cannot sell it.

    • Each portion of food had an individual seal to ensure freshness.

mark

  1. Countable

    an official mark, sometimes made with wax, on a document to indicate its legality or formal approval.

    • The notary had to affix their seal to the contract.

    • The government official placed an official seal on the documents.

    • The ancient seal is kept by a historical society.

动词

UK/siːl/
US/siːl/

定义 seal 动词

covering

  1. C2Transitive

    to close an entrance or container so that nothing can enter or exit.

    • Please ensure each box is sealed before shipment.

    • We sealed the windows and doors to keep the cold air out.

    • Please seal these envelopes using tape.

  2. Transitive

    to apply a protective liquid coating to a surface.

    • They sealed the deck with a layer of waterproof sealant.

    • We need to seal this wood to prevent it from rotting.

    • The artist used an acrylic resin to seal her paintings.

  3. C2Transitive

    to close a letter or package by adhering the edges together.

    • She sealed the letter and put it into the mailbox.

    • Please ensure the package is well sealed for safe delivery.

    • He sealed the envelope with glue.

mark

  1. Transitive

    to make an agreement more secure or to officially approve it.

    • The treaty between the two nations was sealed with a signature.

    • The partnership was sealed with a handshake.

    • The negotiating parties sealed their agreement with a document.

成语

  • seal of approval

    An indication of official approval or endorsement from an authoritative figure or body.

    The research project received the seal of approval from the scientific committee.

  • seal someone's fate

    To determine or decide someone's fate, making it impossible to avoid an unpleasant outcome.

    His decision to jump ship to a rival company effectively sealed the fate of his career.

  • set/put the seal on something

    To finalize or confirm the outcome of something, making it certain and unchangeable.

    The signing of the contract set the seal on their long-term partnership.

片语动词 seal

  • seal something in

    to ensure a substance or property is retained within something during a process, like cooking

    To keep the meat tender, the chef seals the marinade in the pot during cooking.

  • seal something off

    to restrict access to a location or structure, typically due to safety concerns

    The police sealed off the accident scene to ensure that no unauthorized personnel could enter.