“筑”怎么读？

这座城市建在岩石上，四周筑有城墙。The city was walled and built upon a rock.暴徒用一堆堆燃烧的轮胎在大街上筑起了路障。The rioters barricaded streets with piles of blazing tyres.一些独居蜂会把巢筑在田间的地洞里。Some solitary bees make their nests in burrows in the soil....

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