An atoll in the Ralik Chain of the Marshall Islands in the west-central Pacific Ocean. It was the site of U.S. atomic tests from1948 to1954.是什么意思_An atoll in the Ralik Chain of the Marshall Islands in the west-central Pacific Ocean. It was the site of U.S. atomic tests from1948 to1954.在线翻译_英语_读音_用法_例句