first island chain 「第一島鏈」

first island chain
繁：「第一島鏈」
简：「第一岛链」

所謂「第一島鏈」即從北部的千島群島開始，向南經日本，台灣，菲律賓到加裏曼丹島等圍繞中國的一連串島嶼。

中國增加軍費投入 「第一島鏈」中美對抗加劇（2021年3月10日）。BBC中文，取自https://www.bbc.com/zhongwen/trad/56337936

The first island chain is the string of islands that run from the Japanese archipelago, through Taiwan, the Philippines and on to Borneo, enclosing China’s coastal seas.

U.S. admiral calls for ground-based offensive weaponry in western Pacific. (2021, March 9). Reuters. Retrieved from https://www.reuters.com/article/usa-military-china/us-admiral-calls-for-ground-based-offensive-weaponry-in-western-pacific-idUSL1N2L727E