后来，我被提升为指导司机、教育科长、机务段副段长，主抓机车运用和运输安全。
B-Time I-Time O B-Person O O O O B-Person I-Person I-Person I-Person O B-Person I-Person I-Person I-Person O B-Organization I-Organization I-Organization B-Person I-Person I-Person O B-Thing I-Thing I-Thing I-Thing O O O O O O O O