They might have to change their wall plugs.

他们可能得更换墙上的插头。

Ori says phones would charge much slower over-the-air compared to wall plug charging which isn't so bad since battery experts say that batteries have a longer lifespan when you charge them slowly.

奥里说，手机在空中充电比在墙上充电要慢得多，这并不是那么糟糕，因为电池专家说，当你慢慢充电时，电池的寿命会更长。