accelerate/əkˋsɛlə͵ret; əkˈseləreIt/v 1 [I] if a car driver accelerates, they start to go faster〔开车时〕加速: Melissa accelerated as she drove onto the highway. 梅利莎驶上高速公路﹐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 加快经济增长速度的计划 —acceleration /ək͵sɛləˋreʃən; əkˌseləˈreIʃ$n/n [U]