seal 
Seehund 
: 封 密封 n. 印，图章 海豹 
seal 
niêm phong like: seal → →
visa, seal of approval ☊ 
dấu kiểm nhận ☊ to break the seal of a letter ☊ hủy dấu niêm bức thư ☊ Senior management have given their seal of approval (= formal approval) to the plans. ☊ approval ☊
friendship between A and B: It's the story of an extraordinary friendship between a boy and a seal. ☊ friendship ☊
The organs are kept in sealed plastic bags. ☊ seal ☊
Make sure you've signed the cheque before sealing the envelope. ☊ seal ☊
a sealed bid (= one that is kept in a sealed envelope and therefore remains secret until all other bids have been received) ☊ seal ☊
Troops sealed off the site following a bomb alert. ☊ seal sth off ☊
The road will remain sealed off until the police have completed their investigations. ☊ seal sth off ☊
a jar with a rubber seal in the lid ☊ seal ☊
Only drink bottled water and check the seal isn't broken. ☊ seal ☊
The letter bore the president's seal. ☊ seal ☊
visit sth: The lake is also visited by seals in the summer. ☊ visit ☊