C1508 Morse Code

The principal smiled and gave Zhao Yang a big thumbs up, then sincerely praised: "If you don't go on the road of fame, it will be a huge loss to your Government of China."

Zhao Yang said with a laugh, "You taught me this before, Principal. I've only learned it to use."

The principal sighed with emotion, "The current waves of the Yangtze River are stronger than the previous waves. Zhao Yang