US to introduce high-speed rail tech from China.
美国将引进中国铁路高科技技术。
Mobile phone, the high-tech electronic consumptive product, prevails in China at high speed.
手机是近年来在中国普及速度最快、竞争日趋激烈的高科技电子消费类产品。
Mobile phone, the high-tech electronic consumptive product, prevails in China at high speed.
手机是近年来在中国普及速度最快、竞争日趋激烈的高科技电子消费类产品。
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