prevent from keep off protect from区别

prevent from keep off protect from区别
prevent from keep off protect from区别

prevent from keep off protect from区别
它们的意思分别为
1）阻止,制止；妨碍 阻止 预防,防止
2）让开；不接近 (使)不接近,(使)让开 不接近,避开
3）使免受...的伤害；保护 保护,保卫