释义
v. 密封；封住
Close something tightly to prevent anything entering or escaping
n. 密封层；封条
A covering or fastening that keeps something securely closed
n. 海豹
A sea mammal with flippers that also rests on land
例句
Seal the jar tightly to keep the biscuits fresh.
把罐子密封好，让饼干保持新鲜。
Builders should seal gaps around windows to reduce heat loss and improve household energy efficiency.
建筑工人应封住窗户周围的缝隙，以减少热量流失，提高家庭能源利用效率。
常用搭配
- seal an envelope ｜ 封好信封
- seal a gap ｜ 封住缝隙
- an airtight seal ｜ 气密封口
- break the seal ｜ 拆开封口
词族
- sealed (adj.)
- sealer (n.)
- unseal (v.)
反义
- unseal
用法提示
作动词强调封严；作名词也可指海豹，注意语境。
常见问题
- seal 是什么意思？
- v. 密封；封住；n. 密封层；封条；n. 海豹
- seal 怎么发音？
- 英音 /siːl/，美音 /siːl/。点击页面上方的发音按钮可以试听。
