每个物种都有其独特的价值和生存意义。
一个理论最重要的在于其预测的有效性,而非其美学吸引力。
I'm not a professional. I have no professional life. I just do what I do.
The truth is never just one thing; it is always several things at once.
The greatest value of drone technology is that it can reach places that are difficult for humans to access.