The U.S. has 11 active aircraft carriers and 9 amphibious assault ships which are essentially smaller aircraft carriers.

美国有11艘现役航空母舰和9艘两栖攻击舰，其本质上是小型航空母舰。

So there's a single SIM card here, but it has an eSIM, which means that you can have two carriers active at once, which is not something that most other phones can do.

这里面有一张 SIM 卡，也有一张 eSIM 卡，这意味着它支持两个运营商同时运行，很少手机能做到这一点。