The incident took place around 75 miles off Hainan Island, where China - which claims a 125-mile EEZ - has built an underground nuclear submarine base.

事件发生在海南岛外大约75海里处，在那里中国-主张125海里专属经济水域（EEZ）-已经建造一座地下核潜艇基地。

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Thee incident took place 220 kilometres (135 miles) off China"s Hainan island, over an area the US insists is international waters but Beijing regards as part of its territory."

事件发生在距中国海南岛220公里（135英里）处，而美国坚称这一地区是国际水域，但北京认为是其领土的一部分。 。

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Just last month, Chinese naval vessels harassed and deliberately almost caused a collision with the USNS Impeccable, an unarmed U.S. Navy surveillance vessel, which at the time of the incident was conducting routine operations in international waters 75 miles south of Hainan Island.

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