keep doing/ keep on doing (1) keep doing指的是连续地.坚持不断地做某事.中间不间断. It kept blowing for a whole day.刮了一整天风了. The temperature keeps dropping.温度持续下降. (2) keep on doing是指反复坚持做某事.但动作之间略有间隔. They have kept on writing to each other for many years.他们已经互相通信多年了. After drinking some water, he kept on talking.喝了一些水后.他坚持讲话. 【查看更多】
