Their membranes are dotted with leaky sodium and potassium channels that don't require any external triggers.

它们的膜上点缀着不需要任何外部触发的泄漏钠和钾通道。

I had only focused on the external triggers, the pings and dings that were leading me towards distraction.

我一直都把专注力不足的问题归咎于外在因素，认为是那些叮咚的通知声害我无法专心。