Tumor cells are extremely mobile and "adept" at penetrating healthy tissue to form metastases.

肿瘤细胞移动能力很强并易于穿过正常组织形成转移。

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Despite huge investment in designing chips to power mobile phones and tablets, Intel has had little success in penetrating the mobile market.

FORBES: Why It's Bad News That Otellini is Retiring From Intel

Penetrating China could however mean margin pressures as the company negotiates carrier subsidies with China Mobile and competes with the increasingly popular Android phones.

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