seal

名词 seal:

1. fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and letters
   同义词：sealing wax
2. a device incised to make an impression; used to secure a closing or to authenticate documents
   同义词：stamp
3. the pelt or fur (especially the underfur) of a seal
   同义词：sealskin
4. a member of a Naval Special Warfare unit who is trained for unconventional warfare
   同义词：Navy SEAL
5. a stamp affixed to a document (as to attest to its authenticity or to seal it)
6. an indication of approved or superior status
   同义词：cachet, seal of approval
7. a finishing coat applied to exclude moisture
8. fastener that provides a tight and perfect closure
9. any of numerous marine mammals that come on shore to breed; chiefly of cold regions

动词 seal:

1. close with or as if with a seal
2. make tight; secure against leakage
   同义词：seal off
3. decide irrevocably
4. affix a seal to
5. cover with varnish
   同义词：varnish
6. hunt seals

1. This document carries the royal seal.
   这份文件上盖有王室印章。
2. The seal on this bottle is broken.
   这个瓶上的密封纸破开了。
3. The envelope was firmly sealed.
   这个信封封得很严实。