【英语时差8,16】隐形眼镜

 Don is wowed by his new contacts, and Yael explains why they work so well.  Y: Hi Don, what's new?

D: Everything!

Y: What do you mean?

D: The clouds, the grass, this pencil, my chair...

Y: Have you been hitting the bottle?

D: No.

Y: Don't tell me you've had a religious epiphany.

D: No, it's nothing like that.

Y: Then what?

D: I got contact lenses to replace my glasses, and it's like I'm seeing the world through new eyes. It's miraculous¹.

Y: Actually Don, there's nothing miraculous about it.

D: Do tell.

Y: Well, like glasses, contact lenses work by bending light rays just the right amount to make the object come into focus on the retina at the back of the eye. Sometimes the eye's natural lens has an imperfection or may not be shaped properly, which can make your vision blurry² or distorted. Depending on your vision, the right kind of lens helps your eye focus light properly and project a clear image onto the retina.

D: Ok, fine, but why do contacts make things seem so clear?

Y: Patience, young apprentice³. Glasses have what's called an optical center, which means that objects appear clearest when viewed through the center of the lenses. But when you're wearing glasses and you move your eyes to the side, or up, or down, things can seem slightly distorted or blurry.

D: So because contacts are right on the eye and move with the eye, there's no optical center.

Y: Right. Put another way, the entire contact lens is the optical center. So no matter which way you move your eyes, objects appear in perfect focus.

D: And that's why everything seems so much clearer! Like this eraser, and this envelope. . .

Y: I get it, Don.

D: Wait, have you every really looked at a paperweight before?  

1 miraculous   

adj.像奇迹一样的，不可思议的

参考例句：

• The wounded man made a miraculous recovery.伤员奇迹般地痊愈了。
• They won a miraculous victory over much stronger enemy.他们战胜了远比自己强大的敌人，赢得了非凡的胜利。

2 blurry   

adj.模糊的；污脏的，污斑的

参考例句：

• My blurry vision makes it hard to drive. 我的视力有点模糊，使得开起车来相当吃力。 来自《简明英汉词典》
• The lines are pretty blurry at this point. 界线在这个时候是很模糊的。 来自《简明英汉词典》

3 apprentice   

n.学徒，徒弟

参考例句：

• My son is an apprentice in a furniture maker's workshop.我的儿子在一家家具厂做学徒。
• The apprentice is not yet out of his time.这徒工还没有出徒。