现代采石要求我们同时成为地质学家、生态学家和社区外交官。
The leather industry thrives when tradition meets technology—never forget the craft behind the science.
一本好书的标准在于它能让读者感到不安的程度。
The ideal of behaviorism is to eliminate coercion: to apply controls by changing the environment in such a way as to reinforce the kind of behavior that benefits everyone.
