大多数人已经注意到了香烟广告与包装上的警戒标示，但是烟民们似乎对它们不予关注。
Most people have noticed the warning labels on cigarette ads and packages, but smokers do not seem to pay much attention to them.
视觉疲劳主要表现为疲惫感、注意力难于集中、对事物的敏感性和警戒性降低、大脑兴奋度降低、工作效率低下等。
The main symptoms of visual fatigue status are fatigues, difficulties in concentrating attention on the things, decrease of sensitivity, vigilance, brain excitability and work efficiency.
我会试着这么来对付他的警戒性，试着朝另一个方向扔块石头，这样他就会转移注意力了。
'I'll try to counter his vigilance by throwing this rock in the other direction so that he may be distracted.'
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