(informal)begin behaving in a strange, abnormal, or wildly uncontrolled way
(非正式)行為不軌，越軌；出毛??；神經(jīng)錯亂
(informal)behaving or functioning in a normal or regulated way
(非正式)在軌道上；順利，順?biāo)欤?/p>
he is determined to get the club &B{back on the rails}.
他決心使俱樂部回到正常軌道上來。
(of a racehorse or jockey) in a position on the racetrack nearest the inside fence
（賽馬，騎師）近內(nèi)欄，靠內(nèi)欄