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Apart from the renegotiation of NAFTA, the Trump administration also planned to revamp the bilateral trade deal with South Korea, and launched investigations into China's intellectual property practices.

Another US carmaker GM is working on zero-cobalt batteries, solid state electrolytes and ultra-fast charging. The company is "almost there" on million-mile products, which will be more advanced than the new Ultium battery it unveiled in March, said GM Executive Vice-President Doug Parks.

Another problem Aynur faced, like many other students from Xinjiang, was the language barrier. To deal with this, Aynur wrote down all the technical terms in her notebook and reviewed them after work. In addition, her colleagues were patient and would teach her skills repeatedly until she was able to perform them.

Animation drawings are seen in a metro train in Hangzhou, capital of East China's Zhejiang Province, April 27, 2017. To celebrate the ongoing China International Cartoon and Animation Festival in Hangzhou, a metro train consisting of six cars are decorated with animation drawings. [Photo/Xinhua]

Apart from the salary cut for the delivery unit, JD is seeing a round of shake-ups on its management team. Following recent resignations of its chief technology officer Zhang Chen and chief legal officer Long Yu, the tech giant announced last week that Lan Ye, its chief public affairs officer, would be leaving his post for "personal and family reasons" on May 31.