by leaps and bounds的音标

非常迅速，突飞猛进，连跑带跳...

Her French is improving by leaps and bounds.她的法语进步非常快.Their business has grown by leaps and bounds.他们的生意突飞猛进.The total number of species on the planet appears to be growing by leaps and bounds.地球上的物种数目似乎正飞速增长。...