derailment的复数形式怎么写

n.出轨...

This analysis is helpful to the research of derailment and abrasion machenism.该分析有助于脱轨和磨耗机理的探讨.The derailment, according to Transport of London, was reportedly caused by an obstruction on the tracks.据英国交通警方说地铁的脱轨是轨道上的障碍物...

derailment的音标：derailment的英式发音音标为：[dɪ'reɪlmənt]derailment的美式发音音标为：[dɪ'reɪlmənt]...