导读:本周三至周四凌晨，中俄军舰齐现钓鱼岛，引起日本方面极大恐慌。日本政府发表抗议，寻求美国合作。
Japan has lodged a protest with the Chinese ambassador in Tokyo, after a Chinese ship sailed close to contested islands in the East China Sea.
近日一艘中国船只靠近东海有争议岛屿附近，为此日本政府向中国驻东京大使提出了抗议。
Japan administers the uninhabited Senkaku islands, which China also claims under the name Diaoyu islands.
这些岛屿无人居住，日本进行管理并称其为尖阁列岛。中国同样宣布拥有该岛屿主权，将其称为钓鱼岛。
Russian naval ships were also spotted in the area at the same time, Japanese local media said.
据日本当地媒体报道，事件发生之时，该海域还出现了俄罗斯海军舰艇。
In 2012, relations between Japan and China deteriorated after Japan bought the islands from a private owner.
2012年，日本从一名私人所有者手中“买”走了钓鱼岛，自此之后中日关系急剧恶化。
The islands are important because they are close to key shipping lanes, offer rich fishing grounds and lie near potential oil and gas reserves.
这些岛屿十分重要，因为它们靠近重要的航道，也是富集的渔场，岛屿周围甚至还可能有石油、天然气。
Reacting to the incident, Japan’s Chief Cabinet Secretary Yoshihide Suga expressed "serious concern" at a news conference, saying it would escalate tensions.
事件发生后，日本内阁官房长官菅义伟在新闻发布会上表示“严重关切”，称这起事件将加剧紧张局势。
Prime Minister Shinzo Abe has told his government to work closely with the US and other countries to deal with this, Mr Suga said.
据菅义伟透露，日本首相安倍已经告知政府，要和美国及其他国家合作，一起处理这起事件。
"Around 00:50 am (15:30 GMT Wednesday), a Chinese naval vessel entered our nation’s contiguous waters surrounding the Senkaku Islands," the Japanese foreign ministry said in a statement.
日本外交部在一份声明中说道：“大约0点50分（格林尼治时间周三下午15点30分），一艘中国海军舰艇进入我国尖阁诸岛附近水域。”
Japan’s Vice-Foreign Minister Akitaka Saiki summoned China’s ambassador Cheng Yonghua to lodge a protest.
日本副外相斋木昭隆召见了中国大使程永华，向中方提出抗议。
He demanded the vessel swiftly move away from the area. Local media reported the vessel left the area around 03:10 local time.
斋木昭隆要求该艘船只迅速驶离这片海域。据日本当地媒体报道，该艘船只最终在大约3点10分的时候离开了该片海域。
Mr Cheng said the Chinese frigate was allowed to sail in those waters, said Kyodo news agency citing an unnamed source.
共同社引用一位匿名知情人士的话报道，程永华大使说中国护卫舰有权在这些海域航行。
Three Russian military vessels were also seen in the waters around the disputed islands, according to Jiji Press, entering around 21:50 on Wednesday and leaving around 03:05 on Thursday.
据日本时事通讯社的报道，事件发生时，三艘俄罗斯军舰也出现在了该有争议岛屿附近海域。俄方军舰于周三晚上21点50分左右进入该片海域，并于次日3点5分左右离开。
