1.They are a great way to have a professional help keep users one step ahead of hackers.
step ahead of 领先一步
Successful travel is partly a matter of keeping one step ahead of the crowd.
成功的旅行在某种程度上就是要比人群先走一步 。
Businessmen cluster together to get ideas, tips, personal contacts anything to get a step ahead of the computer.
商人们聚集在一起寻求创意、建议、人际关系等,以便能比计算机领先一步 。