窗户都关紧了，百叶窗都拉下了，门也闩上了。The windows were closed and shuttered, the door was barred.房子已经被封了，门被闩上，防止有人入内。The house has been barred and bolted to prevent re-entry.门都闩上了。The doors were bolted on....

“闩上”的英语可以翻译为：latch ...