gas /gæs/●be cooking with ˈgas (NAmE, informal) be doing sth very well and successfully如火如荼地进行；热火朝天◆Business may have been a little slow at first, but now we’re cooking with gas!一开始也许生意不大景气，不过我们现在却做得红红火火！●ˈstep on it ( step on the ˈgasespecially in NAmE) (informal) drive a car faster; accelerate踩油门；加速；加快◆You’ll be late if you don’t step on it.你要是不加快速度就要迟到了。