cause to run off the tracks
run off or leave the rails
同义词：jump
They are determined to get back on track after the row about House of Lords reform de-railed co-operation between their two parties.
BBC: Coalition: derailed or back on track?
The last coach has de-railed.
BBC: Peru's famous yarn
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。