Unlike Mark, Sandra had no rejection complications in the days after the transplant.

和马克不同的是，桑德拉在移植手术后几天内都未出现排斥现象。

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In such a context, silence becomes an absence, a mark of intellectual abdication, a rejection of humanity.

在这样的环境下，沉默已经缺失。它成为智力减退的一个标志，对人性的一种否定。

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In this paper, a land mark based method is proposed for vehicle detection and shadow rejection, and finally vehicle counting is achieved based on the land mark detection method.

提出了一种基于路面标记的自动车辆检测算法，用于检测车辆并排除阴影干扰，进而实现对过往车辆进行正确计数，能更可靠地收集各车道的实时车流信息。

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That day will mark a new crest in the rising tide of public demand for action, beginning with a definitive rejection of the Keystone XL pipeline that would enable the exploitation and export of Canada's tar sands oil.

CNN: Obama, turn climate 'priority' into leadership