中国智能手机市场由本土公司华为、Oppo、Vivo 和小米控制。

The Chinese smartphone market is controlled by home companies Huawei, Oppo, Vivo, and Xiaomi.

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其他本土公司也制定了雄心勃勃的扩张计划。

Other local firms also have big expansion plans.

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Groupon另外一大担忧是确保那些与其合作的中国本土公司是合法的。

Another big concern for Groupon will be ensureing that local companies are legitimate.

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