keepoff和keep out of有什么区别?

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。"keep out关在门外；不准入内to keep the smoke out不让烟进来This coat keeps out the wind。这大衣挡风。