Shanghai entrepreneur Sun Yun said he is scrambling to learn how to make more complicated, higher-value products that will be more difficult to produce elsewhere.
孙云说，他正努力摸索如何制造出更精密、更高附加值和别处难以制造的产品。
Shanghai entrepreneur Sun Yun said he is scrambling to learn how to make more complicated, higher-value products that will be more difficult to produce elsewhere.
孙云说，他正努力摸索如何制造出更精密、更高附加值和别处难以制造的产品。
应用推荐