汉语翻译

a. 未知的, 密封的
【法】 盖印的, 经盖章批准或证实的, 密封的

英语解释：

动词 seal:

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

形容词 sealed:

1. established irrevocably
   同义词：certain
2. closed or secured with or as if with a seal
3. undisclosed for the time being
4. determined irrevocably
5. having been paved
6. covered with a waterproof coating
7. (of walls) covered with a coat of plaster
   同义词：plastered

例句：

1. Police sealed off all the exits from the building.
   警方把建筑物的所有出口都封锁住了。
2. The jar must be well sealed.
   这个罐子得封严实了。
3. I’d like to tell you what I know but my lips are sealed.
   我何尝不想把我知道的都告诉你，只是有口难言。
4. Sealed containers of nuclear waste have been dumped in the sea.
   盛有核废料的密封容器被丢在海里。
5. The envelope was firmly sealed.
   这个信封封得很严实。
6. The computer disk is sent in a sealed container.
   计算机软盘装在密封的盒里寄出。
7. A sealed plastic or foil container used in packaging frozen or dehydrated food.
   塑胶封袋用来装冰冻或蒸干食物的密封的塑料或箔制容器
8. The radioactive waste should be buried deeply under the ground in sealed box.
   这些放射性废物应该放在密封的箱子里深埋在地下。