音標發(fā)音英式音標 [?f??t ?n?ks]美式音標 [?f??rt ?nɑ?ks]英式發(fā)音 美式發(fā)音 同根派生 Fort Knox相關詞英英字典劍橋英英字典 If a building or an area is like Fort Knox, it is impossible to enter or leave it because it is so well protected.Fort Knox劍橋字典Fort Knox柯林斯字典