emergency vehicle短语¹³¹⁶²⁰⁺³ 基本例句 紧急车辆 The first emergency vehicle shot past Sharon. She frantically waved her arms to get the driver's attention. 第一辆急救车箭一般地从沙龙身边驶过，她拚命地挥手要引起司机的注意。 blog.sina.com.cn This problem involves determining the number of routes available to an emergency vehicle operating in a city of one-way streets. 本问题是要来计算：在一个所有街道都为单行线的城市中，一辆急救车可以通行的路径的数量。 phpfans