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"Haven't been using English much since I left college," said Chen, who graduated from China's prestigious Tongji University in Shanghai. "I now feel the pressure to pick it up using spare time."

"Getting to train on a ship allowed me to experience how international trade and logistics are done, such as the movement of cargo from the point of origin to its destination," says Benjamin Baffoe, a doctoral student in logistics engineering and management at SMU, who joined the program in 2011.

"Foreign tourists are strongly curious about Chinese culture. The air quality and transportation security of the country has been improved over the past few years, both of which will attract more overseas visitors to China," he said.

"Grassroots emergency response teams have many advantages, such as flexibility and close connection with the public," Chen Sheng, a senior official of the Ministry of Emergency Management, said at a news conference at the first national competition for volunteer rescue teams in Chongqing on Thursday.

"Given the national security legislation has no retroactive effect, it gives a chance to people who could have violated the law had it been enacted earlier to turn over a new leaf," said Maria Tam Wai-chu, deputy director of the Basic Law Committee under the Standing Committee of the National People's Congress.