keep still 还是stay still?我两种都见过为什么?still都是平静（我见过的）..

keep still 还是stay still?我两种都见过为什么?still都是平静（我见过的）.. ( ) a calm state 用stay还是keep Good food makes us --- 是 stay health 还是 to stay health 还是 to keep healthy 还是 stay healthy health 和healthy的用法keep health 还是 keep healthy?是 stay health 还是stay healthy?哪个正确? I am still stay keep healthy,keep为什么可以改stay? keep still是什么意思still又是什么意思 keep still.的keep在此是什么意思 keep和stay什么关系 keep going and stay strong, keep 和stay 的区别 keep与stay的不同? keep going and stay strong, keep stay leave的区别 keep calm and stay sexy keep calm and stay sexy keep healthy的近义词是fit for myself还是stay healthy,急啊! keep后面是加do还是加doing,STILL后面是加ING吗?SOS