居里夫妇着手去寻找此种神秘反应的原因。
The Curies set out to find the cause of this mysterious reaction.
这些科学家完全相信居里夫妇。
居里夫妇认为自然界必存在某种物质能释放辐射能。
The Curies believed that there was something in nature which gave out radiation.
居里夫妇认为自然界必存在某种物质能释放辐射能。
The Curies believed that there was something in nature which gave out radiation.
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