But, miraculously, expert performers show little if any decline in their efficiency at skill-related tasks.
但是不可思议的是专家们在有关专业技术方面的任务上很少显示出退步——如果退步存在的话。
2
While IP-related authentication certainly raises the bar high enough to keep out all except those of significant skill, it's not something you should ever consider likely to be perfect.
虽然除了那些顶尖高手之外，IP相关认证确实给攻击者设置了足够的障碍，但它也并非近乎完美。
3
You never know when you'll need a particular computer-relatedskill.