I wanted to convert my English articles into audio so I could listen while walking. After looking around, the only option that's free, sounds good, and runs locally is Kokoro.

1. demonstrate

   • Example: This tutorial no longer ==demonstrates== current SwiftUI or Xcode practices.
   • Meaning: to show or illustrate something; to demonstrate

1. Based on the principle of voluntariness

   • Example: Membership in the union is ==based on the principle of voluntariness==—no employee is forced to join.
   • Meaning: following the principle that participation is entirely a personal choice; voluntary basis