turning circle
noun [ C usually singular ] uk/ˈtɜː.nɪŋ ˌsɜː.kəl/ us/ˈtɝː.nɪŋ ˌsɝː.kəl/ (US usually turning radius)
(车辆等掉头用的)回转空间,转向圆
the amount of space a vehicle needs in order to go round in a complete circle
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