sealed
adj. 封闭的,密封的
v. 封闭;盖印;给……涂上保护层(seal 的过去式和过去分词)
例句
Windows are usually sealed off.
窗户通常是封闭的。
《柯林斯英汉双解大词典》
He sealed the envelope and put on a stamp.
他封好信封,贴了张邮票。
The organs are kept in sealed plastic bags.
这些器官保存在密封塑料袋里。
《牛津词典》