根据沃尔瑟姆宠物营养中心得出的结论，宠物可以帮助人类缓解紧张状态。
According to the Waltham Centre for pet Nutrition, pets help reduce stress.
它可以缓解同事之间和邻居之间的紧张状态。
It can also ease the tension among colleagues and neighbors.
华盛顿也表示只有阿兰·格罗斯也得到释放，双方的紧张状态才有可能得到缓解。
But Washington has also said there can be no easing of tensions until Mr Gross is also freed.
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