磋商交换对象本身并不能诱发诺言人作出诺言的，并不影响磋商对象成为诺言的对价。
The fact that what is bargained for does not of itself induce the making of a promise does not prevent it from being consideration for the promise.
一项最新科学研究表明，不遵守诺言是一种复杂的神经生物学反应活动，对大脑进行图像扫描则能够预测一个人是否是不遵守诺言却作出虚假承诺的食言者。
Breaking a promise is a complex neurobiological event, a new study shows-and a brain scan may be able to predict those who are making false promises before they break their word.
但是在她那隐秘的灵魂深处，她对鲍里斯作出的保证是否是戏言，还是紧要的、具有约束力的诺言，这个问题一直使她觉得难受。
But in the most secret recesses of her soul the question whether her engagement to Boris were really a mere jest or a solemn, binding promise worried her.
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