de·rail /dɪˈre(ə)l, di-/
(vt.)使出軌出軌,脫軌器
De·rail v. t. [imp. & p. p. Derailed p. pr. & vb. n. Derailing.] To cause to run off from the rails of a railroad, as a locomotive.
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derail
v 1: cause to run off the tracks; "they had planned to derail the
trains that carried atomic waste"
2: run off or leave the rails; "the train derailed because a
cow was standing on the tracks" [syn: jump]