他们期望在更多的人质被释放之前有互惠的表示。
They expected a reciprocal gesture before more hostages could be freed.
布朗发现他已经被包围了，他唯一的希望是设法与对方进行停火谈判，如果民兵能够让他和他的人离开的话，他就释放他手中30个人质。
Brown saw that he was surrounded. His only hope was to try to negotiate a ceasefire and offer to release his thirty hostages, if the militia would let him and his men go free.
但是书籍已经被作为脱机的人质太久了，让它们变得数字化会释放他们真正隐藏的价值：读者。
But books have been held hostage offline for far too long. Taking them digital will unlock their real hidden value: the readers.
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