central reservation
noun [ C usually singular ] UK uk/ˌsen.trəl rez.əˈveɪ.ʃən/ us/ˌsen.trəl rez.ɚˈveɪ.ʃən/ (US or Australian English median strip)
(道路)中央隔离带
the narrow piece of land between the two halves of a large road
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