兼程而进兼程前进(jiān chéng qián jìn): ⒈ 兼:两倍的;并:合并。加快步伐,一天走两天的路程。兼程并进(jiān chéng bìng jìn): ⒈ 兼:两倍的;并:合并。加快步伐,一天走...