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）
词根：seal
n.
seal 密封；印章；海豹；封条；标志
sealing 封闭，[机] 密封；补铸件的漏洞；猎捕海豹业
sealant [机] 密封剂
sealer 盖印人；检验员；密封层；捕海豹的船或猎人
vi.
seal 猎海豹
vt.
seal 密封；盖章
1.The bottle is sealed, and the label says "pure water".
这个瓶子是密封的，标签上写着“纯净水”。
2.Police have sealed off the runway and say it is unclear if it was an accident or an attempted robbery.
警方已经封锁了跑道，并表示目前还不清楚这到底是一起事故还是抢劫未遂。
3.They signed and sealed the treaty.
他们在条约上签名盖章。
4.The organs are kept in sealed plastic bags.
这些器官保存在密封塑料袋里。
5.Troops have sealed the borders between the countries.
军队已关闭了两国边界。
6.The body was sealed in a lead coffin.
尸体安放在密闭的铅棺中。
7.Other items included a Lapita burial urn with modeled birds arranged on the rim as though peering down at the human remains sealed inside.
其他物品还包括一个拉皮塔人的骨灰盒，骨灰盒边缘摆放着模型鸟，仿佛在俯视密封在里面的人类遗骸。
8.They sealed their cooperation by an agreement.
他们以协议书的方式保证其合作的成功。
9.Windows are usually sealed off.
窗户通常是封闭的。