It controls traffic lights, gets crowds safely into and out of sports stadiums, designs the lenses in our spectacles.
它控制交通灯，确保获得进出体育场馆的人群安全，为我们的眼镜镜片设计。
2
I am speaking about those people who would have to wear very thick glasses, if they did not use contact lenses or laser surgery for the removal ofspectacles.
我指的是那些如果不戴隐形眼镜或者采用激光手术摘掉眼镜的话就不得不戴很厚眼镜的人们。
3
Yes, they are a pair of brown ladies hornrimmed spectacles with blue tinted lenses.