keep doing somethingd 用法和理解

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keep doing somethingd 用法和理解
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keep doing somethingd 用法和理解
keep doing somethingd 用法和理解

keep doing somethingd 用法和理解
keep doing something为连续不断地做某事.有时可以与keep on doing something互换.它们的区别在于keep doing something意为该动作一直不停地在进行中,如:When the train started,she kept waving her hand.而keep on doing something则表示该动作可能停停顿顿但却一直在进行中,如:He kept on making the same mistakes in grammar