| 释义 |
🔑sealseal1 /sil / noun [countable] - a gray animal with short fur that lives in and near the ocean and that eats fish. Seals have no legs and swim with the help of short flat arms (called flippers).海豹
- a special mark that you put on an important piece of paper or letter to show that it is genuine or that it has not been opened印章；印记；封印◆the presidential seal总统印章
- (
physics物理) something that stops air or liquid from getting in or out of something密封件；密封装置◆The plane lost pressure because of a faulty seal.由于密封装置存在缺陷，飞机失压了。
- a small piece of paper, metal, plastic, etc. on a package, bottle, etc. that you must break before you can open it封口；封条
🔑sealseal2 /sil / verb [transitive] - to close or fasten an envelope, a package, etc.封上，封妥（信封、包裹等）◆She sealed the package with tape.她用胶带把包裹封上。◆a sealed envelope封好的信封
- seal sth (up) to fill a hole or cover something so that air or liquid does not get in or out将…封口；密封
- (formal) to make something sure, so that it cannot be changed or argued about确定；使成定局◆to seal an agreement订立协议◆Another goal at the end of the game sealed their victory.比赛接近尾声时的再次进球使得他们的胜利终成定局。
 ●seal sth offto stop any person or thing from entering or leaving an area or building封锁；封闭◆The building was sealed off by the police.大楼被警方封锁了。 |