keep后面为什么可加healthy?形容词怎能用在动词后面?那么stay后面是接health还是healthy?

keep后面为什么可加healthy?形容词怎能用在动词后面?那么stay后面是接health还是healthy? keep是动词,为什么后面加形容词healthy keep后面要加health还是healthy keep us healthy后面为什么用healthy还有us Because they can let us to keep healthy为什么us后面要加to keep health 与keep healthy区别keep 后面加名词还是什么 keep后面加什么词性的单词?keep health or keep healthy? is the best way （to） keep healthy中healthy为什么前面要加to keep healthy 中的 healthy是形容词吧?可是 keep 后面不是只加名词吗?比如keeep standing 后面就是用动名词的啊?怎么会回事啊? keep healthy 为什么不用health? keep healthy,keep为什么可以改stay? 为什么keep healthy中的keep不加副词,到底什么时候动词加副词或形容词呀,要求说明加例子, keep you healthy 还是keep you to be healthy 为什么? keep silent keep silence第二个为什么不对 keep是动词后面不能加名词吗 keep up 是动副短语吗?为什么keep up 后面可以加with? some resolutions are difficult to keep.为什么keep后面不加them keep balance 还是 keep balanced?keep是系动词 后面跟形容词 可balance是名词呀keep balance 是固定词组？keep balanced keep后可以加名词也可以加形容词英语过六级的说~ You need to have healthy eating habits这里的habit后面为什么要加s