the buildings have been so well designed amd bui

C
（周围的）环境[事物]；环境,周围的事物
这些建筑物设计巧妙,与周围环境浑然一体.
surrounding常用复数形式,指"环境,周围的事物",词义较狭窄,仅指周围的具体的物质性的东西.
The students live happily in beautiful surroundings.
circumstance意为"环境,情形,情况",常用复数形式,表明与某事件或某人有关的情况,环境,境况等.
再问： All the electrical devices sold in this store at downtown come with a three-year____.A.safety B.guarantee C.insurance D.security
再问： Weather forecast is not providing us with all reliable information，because potential changes in the weather are hard to_____，let alone predict.A.estimate B.calculate C.emphasize D.convert
再答： B 三年保修期
再答： 祝你进步! 不知你为何不愿采纳？？？