keep away后面不接宾语，而keep away from后面接宾语。如：You should keep away from the bad boys. 类似的短语还有：look out和look out for。如：Look out！
A car is coming. Please look out for the cars when crossing the street. 又如：set out和set out for. We must set out earlier. We will set out for Beijing tomorrow.
keep away和keep away from区别
它们的区别是：
keep away是动词keep＋副词away构成的动副结构的动词词组，意思是“远离/避开”。例如 如果某个人有点危险，你就可以提醒他Keep away.
keep away词组加介词 from，构成的词组，后面可以加上“远离/避开的”对象。。例如上面说的Keep away也可以说成 Keep away the man(离那人远点）
keep away和keep away from区别
两个词组的区别是：keep away的意思是：（使）不要接近，(使）缺席，而keep away from的意思是：远离回避，例如：Don't come close，John，Keep away！
别靠近我，John，站开！
First，keep away from my personal space.首先，远离我的私人空间。
Keep away from him，she says.她告诉我，远离他一点。
