keepoff与keep...off的区别

keep off
避开；不接近
Keep off the grass! 
请勿践踏草地！
My doctor has warned me to keep off sugar. 
我的医生劝我别吃糖。
Keep your dog off me. 
把你的狗从我这儿拿开！
"Keep off oil, or else it will perish your rubber boots."
"不要碰油,否则会把你的橡胶鞋弄坏的。"
v.让开, 不接近
keep off sb.'s toe
v.听任某人行事
keep off the spot
[美俚]求稳, 不冒险