讯息要简单，以一种外星莫尔斯电码格式发送，但我们可以在地球上探测到。

A message would have to be simple—transmitted in a sort of alien Morse code—but we could detect it here on Earth.

youdao

讯息要简单，以一种外星莫尔斯电码格式发送，但我们可以在地球上探测到。

A message would have to be simple—transmitted in a sort of alien Morse code—but we could detect it here on Earth.

youdao