seal

US /sil/

UK /si:l/

B1 中級
  • v. 密封(某物);封上(信或包裹);密封
  • n. 海獅,海豹;印章;密封墊;密封裝置

例句

The containers must be carefully sealed so that no air can get in.

an official-looking letter with a wax seal