并驾齐驱（并駕齊驅|並駕齊驅）　

◎ 并驾齐驱 bìngjià-qíqū

[keep pace with;keep up with;keep abreast of] 本指几匹马并排拉着车一齐奔跑,现喻齐头并进,不分前后高低