the midnight sun
noun [ S ] uk/ˌmɪd.naɪt ˈsʌn/ us/ˌmɪd.naɪt ˈsʌn/
（南北极地区夏季可见的）夜半太阳，子夜太阳
the sun when seen in the middle of the night in summer in the arctic or antarctic (= the parts of the world furthest to the north and the south)
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。