siege

1. N-COUNT A siege is a military or police operation in which soldiers or police surround a place in order to force the people there to come out or give up control of the place. 包围[also 'under' N]

We must do everything possible to lift the siege. 我们必须尽一切可能解除包围。

2. PHRASE If police, soldiers, or journalists lay siege to a place, they surround it in order to force the people there to come out or give up control of the place. 包围

The rebels laid siege to the governor's residence. 叛乱者们包围了那座总督官邸。