Q: Japanese media reported that China sent two naval vessels to the waters near the Chunxiao Oil and Gas Field for patrol missions.

问：据日本媒体报道，中方已派遣两艘军舰赴春晓油气田附近海域执行巡逻任务。

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Chinese vessels have repeatedly harassed American and Japanese naval ships, including the USS John s.

中国船只频繁干扰美国和日本的海军舰船，包括约翰•s•麦凯恩号USS John S。

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Ni Lexiong, director of the Sea Power and Defence Policy Research Institute at the Shanghai University of Political Science and Law, says the Chinese military may have been reacting to provocation by Japanese naval vessels, Hong Kong's South China Morning Post reports.

BBC: Japan Maritime Self-Defense Force destroyer Yuudachi