1.512GB 怎么念？

内存是Storage。512G内存=512GB of storage，GB要念为gigabyte /ˈɡɪɡ.ə.baɪt/

例如：

我想要一个512GB iPhone XS Max。

在口语中要表达为：

I want a 512 gigabyte iPhone XS Max.

三个档次的内存英文怎么表达?

Apple is offering the iPhone XS Max in three storage tiers 64GB，256GB and 512GB

Storage tiers:内存的等级

2.battery life≠电池寿命

battery life=电池续航能力

例句：

The Battery Life of iPhone XS Max is Up to 90 minutes longer than iPhone X.

iPhone XS Max的续航时间比iphone X 增长了90分钟。

battery lifespan才是电池寿命