seal
US /siːl/
UK /siːl/

1.
2.
印章, 封印
a piece of wax, lead, or other material with an individual design stamped into it, attached to a document as a mark of authenticity or used to close a letter or package
:
•
The king's letter bore his royal seal.
国王的信件带有他的皇家印章。
•
The document was authenticated with an official seal.
该文件已通过官方印章认证。
3.
海豹, 海狗
a carnivorous marine mammal with flippers, a streamlined body, and a layer of blubber, able to live on land and in water
:
•
We saw a seal basking on the rocks.
我们看到一只海豹在岩石上晒太阳。
•
Seals are excellent swimmers.
海豹是优秀的游泳者。
1.
2.
确认, 批准
formally certify or approve (something)
:
•
The deal was sealed with a handshake.
这笔交易以握手方式敲定。
•
Their fate was sealed when the enemy attacked.
当敌人进攻时,他们的命运就注定了。