新的iPhone4 仅是9.3毫米厚（比3GS薄出15%)，将内建两颗摄像头（一颗前置，一颗后置并配有LED闪光灯），并将拥有两个扬声器实现噪声抑制技术。

The iPhone 4 is 9.3mm thick (a quarter thinner than the iPhone 3GS) with two built-in cameras (one on the front and one on the back with an LED flash), and two microphones for noise cancellation.

youdao

我一直让我办公室里的灯保持昏暗，因为明亮的灯光会使我感到不安，而且我总是听着我的iPod因为办公室的噪声会影响我的工作。

I keep the lights dimmed in my part of the office as bright lights make me anxious and I always listen to my iPod because noise in the office also disturbs me.

youdao

缺点：没有图像稳定和试验暴露了一些边缘和噪声在闪光灯和日光杆。

Cons: no image stabilization and tests revealed some fringing and noise in both flash and daylight shots.

youdao