摘要：日本东京都“调查团”抵达中国钓鱼岛海域，开始对钓鱼岛周边海域进行非法调查。你知道怎么用英语表达吗?

A survey group organized by Tokyo metropolitan government arrived at waters near Diaoyu Islands in the East China Sea and started illegal survey around the islands this morning.

The group departed from Ishigaki port, Okinawa, last night and arrived at waters surroundingDiaoyu Islands at 5am today local time. The group started illegal survey at 6:15am, including measuring the temperature and the depth of the water and the landform of the area.

The group is expected to return to Ishigaki port tonight, according to media reports.

今日凌晨，日本东京都“调查团”抵达中国钓鱼岛海域，开始对钓鱼岛周边海域进行非法调查。“调查团”于昨晚由冲绳岛石垣港出发，并于9月20日凌晨5点抵达钓鱼岛周边海域。“调查团”于6点15分开始进行非法调查，涉及的内容包括海水温度和深度以及地形的测量。“调查团”预计将于9月2日晚上返回石垣港。

【讲解】

文中的###illegal survey即为非法调查，illegal指非法的、不合法的，而survey作为名词则有调查、测量、审视和纵览的意思，如field survey 实地调查。waters表示海域、领海，如inshore waters 沿岸水域。Diaoyu Islands为钓鱼岛，是钓鱼岛列岛的主岛，中国固有领土，面积4.3838平方公里，周围海域面积约为17万平方公里。