她在两个男人之间摇摆不定，一个年龄比她大一倍，一个比她小。
She vacillates between men twice her age and men younger than she.
这个国家在基督教和异教之间摇摆不定。
The country swayed precariously between Christianity and paganism.
传记作者不得不在与主题有关的两个摇摆不定的位置之间跳来跳去。
The biographer has to dance between two shaky positions with respect to the subject.
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