cul de sac英 [ˈkʌl də sæk]美 [ˈkʌl də sæk]网络 死胡同; 独头巷道; 陷凹; 尽端路英英释义nouna street with only one way in or outSynonym:blind alleydead-end streetimpassea passage with access only at one endSynonym:culdead end双语例句