The doctor says my aunt may or may not recover; she's right on the razor's edge.

医生说，我姑妈恢复的可能性未定，她正处于危险之中。

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Wavelet transforms are used to compress image and smooth edge of liver region from abdomen MRI. The results of image segmentation are evaluated based on the liver region determined by doctor.

应用小波变换对腹部MRI进行图像压缩与平滑化处理，应用边缘检测技术进行边缘数据与肝脏特征值的提取，并结合医师确定的肝脏区域进行图像分割效果的评价。

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Bruce's Obi-Wanish trainer, a man named Ducas who is played by Liam Neeson, peddles self-realization nostrums like a cross between Cecil Humphreys's holy man in "The Razor's Edge" and Doctor Phil.

WSJ: Holy Melancholy, 'Batman'!

The moral thrust of doctor-assisted suicide is the equivalent of telling someone standing on the edge of a bridge or building to jump.

FORBES: Fact and Comment