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一群孩子正在美国一所医院内打预防针,与通常情况形成鲜明对照的是,注射室内看不到他们畏怯的神情,听不到疼痛难忍的哭叫声,却充满着欢声笑语。这究竟是怎么回事呢?原来这是医学研究人员精心
A group of children are being shot in a hospital in the United States. In stark contrast to the usual situation, they can’t see their fears and can’t hear the painful cries, but they are full of laughter. What is going on here? It turns out that this is a medical researcher