我的同事，电射天文学家艾瑞克·蔡森曾详细地描述过，只有有道德的文明可以避免自我毁灭。

My colleague, radio astronomer Eric Chaisson, has written at length that only "ethical" civilizations avoid destroying themselves.

youdao

我的同事，电射天文学家艾瑞克·蔡森曾详细地描述过，只有有道德的文明可以避免自我毁灭。

"My colleague, radio astronomer Eric Chaisson, has written at length that only" ethical "civilizations avoid destroying themselves."

youdao

我的同事，电射天文学家艾瑞克·蔡森曾详细地描述过，只有有道德的文明可以避免自我毁灭。

"My colleague, radio astronomer Eric Chaisson, has written at length that only" ethical "civilizations avoid destroying themselves."

youdao