It gets sealed off after a while.

它会被封一段时间。

Police have sealed off streets around Woolwich.

警方已经封锁了伍利奇附近的街道。

Soldiers were soon at the scene and sealed off the area.

很快有军人抵达并封锁现场。

Finally, they pumped the neon gas in and sealed off the electrodes.

最后，他们将氖气注入并将电极封住。

Police sealed off the exits so the bank robbers couldn't escape.

警方封锁所有出口，让银行抢匪无处可逃。

The area was sealed off after the 1986 explosion that destroyed the plant.

这片区域被封锁，1986年爆炸摧毁了核电站。

The area has been sealed off and a large police investigation is now underway.

该地区已被封锁，警方正在展开大规模调查。

" They sealed off all of those before the start of the year, " said Neville.

“开学前他们就把那些通道全封死了，”纳威说道。

The ooze in question was sealed off by a bacteria-proof layer of chert-like material called porcellanite.

上述软泥被一种类似硅质岩的材料——瓷状岩——的隔菌层所封闭的。

The gang sealed off the town by torching a vehicle in a tunnel and blocking roads.

歹徒在隧道里纵火焚烧了一辆汽车并堵塞道路，封锁了该镇。