retina视网膜

display–displays(复数)显示屏

tier层，排，列

Display显示器

Apple's updated Retina HD displays are 25% brighter than the screens on last year's iPhones.

苹果手机新的视网膜显示器比老款的显示器亮度增加25%.

Storage 内存

The base model will now include 32GB of storage，the mid-tier model has 128GB and the top tier packs 256GB of storage.

GB=gigabyte /ˈɡɪɡ.ə.baɪt/

普通版的手机内存是32G，中档手机内存是128G，最高内存是256G。

dual camera 双摄像头

The dual camera makes the pictures much better.

双摄像头让拍出的照片更好。

New home button 新的home键

The new iPhone 7 have an updated home button.

IPhone 7有升级换代的home键。

Water and dust-resistance 防水防尘。