on the track

汉语翻译

例句：

1. I'm on the track of a valuable painting.
   我在追寻一幅珍贵的油画。
2. Charles says he's on the track of a chap who would be real for the vacant manager's job.
   查尔斯说他正在寻找一个人选来填补空缺的经理职位。
3. The delay on the track has played the very devil with the train timetable.
   铁路线上的这次误点已严重打乱了列车的运行安排。
4. The police are on the track of the gang.
   警方正在追踪那帮团伙。