advance at double the speed; hurry post-haste; travel by long stages ❍ 因听见元春喜信，遂昼夜兼程而进，一路俱各平安。(《红楼梦》176) The good news about Yuanchun had made Jia Lian decide to hurry back post-haste. The journey had been smooth and uneventful.
兼程并进jiān chénɡ bìnɡ jìn
以加倍的速度前进。travel at double speed, advance at double the speed, hurry, devour the course