rev up(sb/sth)
—phrasal verbwithrevverb[IorT]uk/rev/us/rev/-vv-
tobecomemoreactive, or to make someone or somethingbecomemoreactive
（使）活跃起来；（使）积极起来
Thehotelisrevvingup for thebusysummerseason.正值忙碌的夏季，这家饭店的节奏也变快了。
drugswhichrevupyournervoussystem刺激神经系统的药物