These discoveries may help to explain why certain breast cancers are more aggressive than others, or even to identify highly invasive tumors at an early stage.

这些发现可能有助于解释为什么某些乳腺癌细胞比其他细胞具有更强的侵袭性，或甚至在早期鉴别具有侵袭性的肿瘤。

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The variety and quantity of invasive weeds depend primarily on grazing intensity and are greatest in the extreme degradation stage.

杂草入侵的种类和数量取决于放牧强度，在极度退化阶段的杂草入侵种类和数量最多。

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This procedure has emerged as a less invasive alternative to surgery in patients with end-stage liver disease.

这种手术由于是一种微创手术，对于终末期肝病病人来说比进行外科手术更具有优势。

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The authors, from the University of California, San Francisco, noted that even when DCIS becomes an invasive cancer, it's treatable when found at an early stage: The odds that a 60-year old woman with a 7 millimeter breast tumor, would die from it in the next 10 years are less than 3%, half the risk she faces of dying from another cause during that time.

WSJ: Can Breast Cancer Be Overtreated?