Green and low-carbon development is not a multiple-choice question, but a must-answer question.

I think as technologists we should have some safe places where we can try out new things and figure out the effect on society.

我想一个平常人完全可以选择不平常。

The photograph is the most perfect picture.

如果你不犯错误，说明你不够努力。

对正义的评估必须基于对实际社会与可行替代方案的某种比较。

在气候变化问题上，大气层并不关心政治边界。