Word tips Richter scale [ˈriktə skeɪl] 里氏震级 (a system of numbers for measuring how powerful an earthquake is) casualty [ˈkæʒuəlti] 人员伤亡 (people injured or killed in an accident) landslide [ˈlændslaɪd] 山崩,滑坡 (a heavy fall of earth and rocks down a side of a mountain or steep slope) typhoon [taɪˈfu:n] 台风 (a tropical storm with strong winds that move in circles) molten lava [ˈməʊltən ˈl ɑ :və] 熔岩岩浆 (rock in a hot liquid state flowing from an exploding volcano) destructive [dɪˈstrʌktɪv] 破坏性的 (causing severe damage or harm)