前缀be-, 强调。siege, 包围，词源同set.

1. The main part of the army moved to Sevastopol to besiege the town.

军队主力转移到了塞瓦斯托波尔，对该城进行围攻。

来自辞典例句

2. It will be under siege, and you shall besiege it.

你要对面攻击这城, 使城被困.

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3. It's inevitable in China that the peasants besiege the cities.

农民“包围城市”,是中国现代化进程中的必然.

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4. Late at night , the guerrilla forces besiege the yard.

当俊俏女兵和老马向爷爷求助时,爷爷沉默无语,悄悄离去.

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5. Our armoured steeds besiege the Dragon Town.

铁骑绕龙城.

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