音標發(fā)音英式音標 [?r?k.f??l]美式音標 [?rɑ?k.fɑ?l]英式發(fā)音 美式發(fā)音 基本解釋n.大量的落石同根派生 rockfall相關(guān)詞英漢例句用作名詞 (n.)In mountainous area, gas pipelines are destroyed by rockfall impact.其中,在山區(qū)由落石沖擊作用引起輸氣琯道破壞的現(xiàn)象時有發(fā)生。rockfall更多例句英英字典劍橋英英字典 a mass of stones that is falling or has already fallenrockfall劍橋字典rockfall柯林斯字典