seal
noun [ C ] uk/siːl/ us/siːl/
(ANIMAL)
B2 海豹
a large mammal that eats fish and lives partly in the sea and partly on land or ice
- More examples
- a seal pup
- The plan to cull large numbers of baby seals has angered environmental groups.
- We could see seals on the rocks, basking in the sun.
- We spied a seal from the shore.
- We sailed past a group of seals.
(COVERING)
密封垫；密封装置
something fixed around the edge of an opening to prevent liquid or gas flowing through it
Clean the seal on/around the fridge door regularly so that it remains airtight. 定期清洁冰箱门上的密封条，可以使它保持密闭。
封口
a thin piece of material such as paper or plastic that covers the opening of a container and has to be broken in order to open the container and use the contents
(MARK)
封蜡;印章;封条
an official mark on a document, sometimes made with wax, that shows that it is legal or has been officially approved
The lawyer stamped the certificate with her seal. 律师在证书上盖上了她的印章。
Idioms
seal of approvalidiom 官方批准，正式批准
a statement or sign that someone in an important position approves of something
The mayor has given the proposal her seal of approval. 市长已经批准了这项建议。
set/put the seal on somethingidiom 使有确切结果;使成定局
to make the result of something certain
The meeting set the seal on the negotiations. 会议使谈判有了结果。
seal
verb [ T ] uk/siːl/ us/siːl/
(COVERING)
C2 封，密封
to close an entrance or container so that nothing can enter or leave it
（用特殊液体）封盖…的表面
to cover a surface with a special liquid to protect it
This floor has just been sealed (with varnish), so don't walk on it! 地板刚刚上过清漆，别在上面走！
C2 封上（信或包裹）
to close a letter or parcel by sticking the edges together
Seal the package (up) with tape. 用透明胶带把包裹封起来。
He sealed (down) the envelope and put a stamp on it. 他封上信封，贴上邮票。
- More examples
- The top of the bottle is then sealed with green wax.
- To ensure that the bottles of ink are not tampered with, the lids will be sealed with plastic.
- Make sure that any gaps around the edge of the bath are sealed.
- Seal the bags before they go in the freezer.
- Food sealed in foil pouches lasts for a long time.
(MARK)
确认，正式批准（协议）
to make an agreement more certain or to approve it formally
The two leaders sealed their agreement with a handshake. 两位领导人握手表示达成协议。
Idiom
seal someone's fateidiom 注定（或决定）（某人）的命运
If an action, event, or situation seals your fate, nothing can stop some unpleasant thing happening to you.
From the moment she stepped into the busy road her fate was sealed. 在她走上那条繁忙的道路时，她的命运就注定了。
Phrasal verbs
seal something in 保持，使不丧失
to prevent a substance or quality from being lost from something during a process such as cooking
Fry the meat quickly in hot oil to seal in the flavour/juices. 把肉在热油中迅速过一下，以保持它的原汁原味。
seal something offC2 封锁，隔离
to prevent people from entering an area or building, often because it is dangerous
Two more bombs have been discovered since the police sealed off the area. 警察将这个地区封锁后，又发现了两枚炸弹。