ac·cel·e·rate/ək`sɛləˏret; əkˈseləreɪt/ v 1 [I] if a car driver accelerates, they start to go faster 加速: Melissa accelerated as she drove onto the highway. 梅莉莎驶上高速公路便加快了车速。 2 [I,T] if a process accelerates or if you accelerate it, it starts to happen more quickly （使）加快; 促进: a plan to accelerate economic growth 促进经济增长的计划